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In the visible spectrum the colour having t he shortest wavelength is-
General Science Class-7th Class 8th Class 9th
Q. 2 of Quiz-588 (Que-ID : 559)
In the visible spectrum the colour having t he shortest wavelength is-
In the visible spectrum the colour having t he shortest wavelength is-
- Violet
- blue
- yellow
- Red
Ans → (a)Violet
Explanation →
in the term of wavelength the order of spectrum is (shortest to longest)
↓ V -Violet
↓ I = Indigo
↓ B = Blue
↓ G = Green
↓ Y = Yellow
↓ O = Orange
R = Red
This question is taken from this post → General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams - attemp/practice
More MCQs in - General Science Quiz | Practice test for SSC, DSSSB, UPSSC, UKSSC, railway, and RRB Exams
Directions : (Q.1 - Q.15 Physics part)
Galvanized iron is coated with a thin coating of-
- copper
- zinc
- aluminium
- white lead
Q. 2 of Quiz-588 (Que-ID : 559)
In the visible spectrum the colour having t he shortest wavelength is-
In the visible spectrum the colour having t he shortest wavelength is-
- Violet
- blue
- yellow
- Red
Q. 3 of Quiz-588 (Que-ID : 563)
Which of the following is the most viscous medium?
- Coaltar
- Water
- Alcohol
- Air
Q. 4 of Quiz-588 (Que-ID : 564)
A pond of clear water appears less deep than it really is. This is due to-
A pond of clear water appears less deep than it really is. This is due to-
- Reflection
- refraction
- The transparency of water
- Dispersion
Q. 5 of Quiz-588 (Que-ID : 567)
Conversion of heat into electrical energy can be achieved by using a -
Conversion of heat into electrical energy can be achieved by using a -
- ammeter
- hydromere
- voltmeter
- thermocouple
Q. 7 of Quiz-588 (Que-ID : 578)
What is the full form of RADAR ?
- Radio Detecting and Ranging
- Radio Detect and Rangs
- Radio Device and Ranging
- Region Device and Ranging
Q. 8 of Quiz-588 (Que-ID : 579)
Which of the following is the fastest communication channel ?
- Radio wave
- All are operating at nearly the same propagation speed
- Optical fiber
- Microwave
Q. 9 of Quiz-588 (Que-ID : 580)
Light from the sun reaches us in nearly
- 5 min
- 4.30 hrs
- 5.30 hrs
- 8 min
Q. 11 of Quiz-588 (Que-ID : 582)
The capacity of communication channel is measured in
- Band rate
- Band width
- Data flow
- Bit capacity
Q. 12 of Quiz-588 (Que-ID : 583)
Which of the following has the highest frequency ?
- x-rays
- cosmic rays
- microwaves
- radio waves
Q. 13 of Quiz-588 (Que-ID : 584)
In a freezer ice cube will be formed more quickly in trays made of
- rubber
- plastic
- aluminium
- wood
Q. 14 of Quiz-588 (Que-ID : 585)
Atmospheric pressure exerted on earth due to
- gravitational pull
- rotation of earth
- revolution of earth
- uneven heating of earth
Q. 15 of Quiz-588 (Que-ID : 586)
Which of the following is vector quantity ?
- momentum
- pressure
- Energy
- work
Directions : (Q.16 - Q.30 Chemistry part)
Q. 16 of Quiz-588 (Que-ID : 587)Neutrons were discovered by
- James Chadwick
- Ernest Rutherford
- J. J. Thomson
- John Dalton
Q. 17 of Quiz-588 (Que-ID : 588)
Atomic mass of an element equal to the sum of number of
- electrons and protons only
- protons and neutrons only
- electrons and neutrons only
- electrons, protons and neutrons
Q. 18 of Quiz-588 (Que-ID : 589)
Which one of the following is the largest composition in biogas ?
- Carbon dioxide
- Methane
- Hydrogen
- Hydrogen sulphide
Q. 20 of Quiz-588 (Que-ID : 591)
Vinegar is also known as -
- ethanoic acid
- nitric acid
- sulphuric acid
- tartaric acid
Q. 21 of Quiz-588 (Que-ID : 592)
Which of the following burns by producing a yellow, luminous flame ?
- coal
- LPG
- Wax
- charcoal
Q. 22 of Quiz-588 (Que-ID : 593)
The modern periodic table was prepared by -
- Dobereiner
- Newlands
- Bohr
- Mendeleev
Q. 24 of Quiz-588 (Que-ID : 595)
How much amount of urea will be required for supplying 1 kg of nitrogen ?
- 2.0 kg
- 2.2 kg
- 2.5 kg
- 2.7 kg
Q. 27 of Quiz-588 (Que-ID : 598)
Which of the following is also known as laughing gas ?
- Nitric oxide
- Nitrous oxide
- Nitrogen pentoxide
- Nitrogen
Q. 28 of Quiz-588 (Que-ID : 599)
Who is regarded as the father of modern chemistry ?
- Rutherford
- Einstein
- Lavoisier
- C. V. Raman
Q. 29 of Quiz-588 (Que-ID : 600)
The cooking gas LPG mainly consist of
- Ethene
- Propene
- Propane and Butane
- Ethyne
Q. 30 of Quiz-588 (Que-ID : 601)
What is the dominant chemical present in detergent powder ?
- Hydrochloric acid
- Sodium carbonate
- Calcium carbonate
- Sodium alkyl sulphate
Directions : (Q. 31 - Q. 45 Biology Part)
Q. 31 of Quiz-588 (Que-ID : 602)which one of the following plant tissues has dead cells ?
- Epidermis
- Parenchyma
- Collenchyma
- Sclerenchyma
Q. 32 of Quiz-588 (Que-ID : 603)
Lights enters the eye through a thin membrane called
- retina
- cornea
- pupil
- iris
Q. 33 of Quiz-588 (Que-ID : 604)
Which of the following is not a Reptile ?
- Green-turtle
- Crocodile
- Salamandra
- Garden Lizard
Q. 34 of Quiz-588 (Que-ID : 605)
which of the following statements is not a micronutrient in plants ?
- Iron
- Manganese
- Copper
- Magnesium
Q. 35 of Quiz-588 (Que-ID : 606)
Red colour of tomato is caused due to the presence of
- Vitamin C
- Lycopene
- Chromoplasts
- Leucoplasts
Q. 36 of Quiz-588 (Que-ID : 607)
Which acid is produced in human stomach for digestion purpose ?
- Sulphuric Acid
- Hydrochloric Acid
- Acetic Acid
- Nitric Acid
Q. 37 of Quiz-588 (Que-ID : 608)
Chromosome number in any species
- increase by age
- decrease by age
- is constant
- increase with the weight
Q. 38 of Quiz-588 (Que-ID : 609)
In human body percentage of which element is highest?
- Hydrogen
- Nitrogen
- Carbon
- Oxygen
Q. 39 of Quiz-588 (Que-ID : 610)
Mother's milk provides almost complete diet to the new born , but it lacks the following
- Iron
- Calcium
- Magnesium
- Potassium
Q. 40 of Quiz-588 (Que-ID : 611)
Tulsi plant has medicinal values due to presence of the following
- Inorganic acid
- Organic acid
- Phenols and Flavonoids
- None of the above
Q. 41 of Quiz-588 (Que-ID : 612)
The exposed skin of our body starts cracking in winter season due to
- rainy season,
- high humidity
- summer season
- low humidity
Q. 43 of Quiz-588 (Que-ID : 614)
Which nutrient provides the maximum energy on breakdown?
- Fibres
- Proteins
- Fats
- Carbohydrates
Q. 44 of Quiz-588 (Que-ID : 615)
Which organ in the human body helps to maintain balance ?
- Heart
- Liver
- Ear
- Brain
Q. 45 of Quiz-588 (Que-ID : 616)
Hemoglobin is the protein inside red blood cells that carries
- Oxygen
- Carbon dioxide
- Nitrogen
- Ozone
More MCQs In - General Science Class-7th Class 8th Class 9th
Q. 8 of Quiz- (Que-ID : 2851)
The outermost and innermost wall layers of microsporangium in an anther are respectively
- endothecium and tapetum
- epidermis and endodermis
- epidermis and middle layer
- epidermis and tapetum.
Q. 16 of Quiz- (Que-ID : 3334)
Which form of pathogen is used in vaccination ?
- Activated and strong pathogenic antigens
- Inactivated and weakened pathogenic antigens
- Hyperactive and strong pathogen
- Preformed antibodies
Q. 2 of Quiz- (Que-ID : 3170)
Which of the following is absent in female frog?
- Webbed feet
- Copulatory pads
- Tympanum
- All are present
Q. 18 of Quiz- (Que-ID : 3386)
n the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as
- inactivated sludge
- activated sludge
- primary sludge
- secondary sluge
Q. 22 of Quiz- (Que-ID : 3540)
The agents that bring undesirable changes in the environment arc called
- Pollution
- Fragments
- Pollutants
- None of the above
Directions : (Q. 31 - Q. 45 Biology Part)
Q. 31 of Quiz- (Que-ID : 602)which one of the following plant tissues has dead cells ?
- Epidermis
- Parenchyma
- Collenchyma
- Sclerenchyma
Q. 24 of Quiz- (Que-ID : 2993)
Vasa recta is present in which type of nephron
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Q. 25 of Quiz- (Que-ID : 3243)
Placentation in tomato and lemon is
- Parietal
- Free central
- Marginal
- Axile
Q. 3 of Quiz- (Que-ID : 3546)
Which among the following is major component of Gobar Gas?
- Butane
- Ethane
- Propane
- Methane
Q. 3 of Quiz- (Que-ID : 74)
Which of following is the most viscous medium?
- Coaltar
- Water
- Glycerine
- Alcohol
Q. 13 of Quiz- (Que-ID : 2956)
To initiate translation, the wiRNA first bind to
- the smaller ribosomal sub-unit
- the larger ribosomal sub-unit
- the whole ribosome
- no such specificity exists
Q. 17 of Quiz- (Que-ID : 588)
Atomic mass of an element equal to the sum of number of
- electrons and protons only
- protons and neutrons only
- electrons and neutrons only
- electrons, protons and neutrons
Q. 4 of Quiz- (Que-ID : 3447)
The number of birth during a given period in the population that are added to the initial density is referred to
- Natality
- Mortality
- Sex-ratio
- None of the above
Q. 37 of Quiz- (Que-ID : 608)
Chromosome number in any species
- increase by age
- decrease by age
- is constant
- increase with the weight
Q. 3 of Quiz- (Que-ID : 563)
Which of the following is the most viscous medium?
- Coaltar
- Water
- Alcohol
- Air
Q. 8 of Quiz- (Que-ID : 3401)
Which of the following steps are catalysed by Taq polymerase in a PCR reaction?
- Denaturation of template DNA
- Annealing of primers to template DNA
- Extension of primer end on the template DNA
- All of the above
Q. 20 of Quiz- (Que-ID : 3438)
First biochemical to be produced commercially by microbial cloning and genetic engineering:
- Human insulin
- Penicillin
- Interferons
- Fertility factor
Q. 10 of Quiz- (Que-ID : 3003)
what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
Q. 24 of Quiz- (Que-ID : 3042)
The major site for production of gibberellin is
- Embryos
- Roots
- Young leaves
- All of these
Q. 25 of Quiz- (Que-ID : 3343)
Which of the following diseases is transmitted by the bite of the female mosquito vector ?
- Filariasis
- Amoebiasis
- Typhoid
- Pneumonia
Q. 24 of Quiz- (Que-ID : 595)
How much amount of urea will be required for supplying 1 kg of nitrogen ?
- 2.0 kg
- 2.2 kg
- 2.5 kg
- 2.7 kg
Q. 20 of Quiz- (Que-ID : 3388)
Methanogens, growing anaerobically on cellulosic material produce
- methane
- methane and carbon dioxide
- methane and hydrogen
- methane, carbon dioxide and hydrogen
Q. 21 of Quiz- (Que-ID : 2664)
which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
Q. 22 of Quiz- (Que-ID : 3015)
Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Q. 8 of Quiz- (Que-ID : 2621)
Which enzyme converts polysaccharides into disaccharides
- Amylases
- Lipases
- Salivary amylase
- None of the above
Q. 5 of Quiz- (Que-ID : 567)
Conversion of heat into electrical energy can be achieved by using a -
Conversion of heat into electrical energy can be achieved by using a -
- ammeter
- hydromere
- voltmeter
- thermocouple
Q. 25 of Quiz- (Que-ID : 3268)
Which one of the following groups of animals is bilaterally symmetrical and triploblastic
- Aschelminthes (round worms)
- Ctenophores
- Sponges
- Coelenterates (Cnidarians)
Q. 2 of Quiz- (Que-ID : 73)
The Heater Element in an electric iron is made of__
- Copper
- Tungesten
- Nichrome
- Iron
Q. 19 of Quiz- (Que-ID : 3337)
Vaccine against polio viruses is an example of
- auto-immunisation
- passive immunisation
- active immunisation
- simple immunisation
Q. 9 of Quiz- (Que-ID : 2677)
Where does erythropoiesis in adult takes place
- Bone marrow
- Spleen
- Thymus
- None of the above
Q. 25 of Quiz- (Que-ID : 2693)
What condition occurs when not enough oxygen reaches heart muscle
- High bp
- Low bp
- Angina
- Heart failure
Q. 20 of Quiz- (Que-ID : 2888)
Which of the following is not a characteristic of an ideal contraceptive ?
- User-friendly
- Irreversible
- Easily available
- Least side-effects
Directions : Calculate the rate of interest
Q. 10 of Quiz- (Que-ID : 4671)A sum of money becomes ₹6,000 in 2 years and ₹6,600 in 3 years at compound interest. What is the rate of interest?
- 5%
- 10%
- 15%
- 20%
Directions : (प्रश्न 16 से 20) प्रत्येक प्रश्न में दिए गए वाक्य को व्यक्त करने के लिए उपयुक्त लोकोक्ति का चयन कीजिए।
Q. 19 of Quiz- (Que-ID : 1009)चाहने वाले कि इच्छा ही सर्वोपरि होती है | इस वाक्य के लिए उपयुक्त लोकोक्ति है-
- अपना हाथ जगन्नाथ
- पिया चाहे सो सुहागिन
- मीटौ सोई जो जाहि भावै
- बिंध गया सो मोती
Q. 24 of Quiz- (Que-ID : 3542)
The petrol used in engines filled with catalytic converter should be
- Simple petrol
- Any type of petrol
- Unleaded petrol
- None of the above
Q. 20 of Quiz- (Que-ID : 3263)
Order Rhynchocephalia consists of
- Tuataras
- Lizards and snakes
- Turtles and tortoises
- Crocodiles, alligators, caimans
Q. 4 of Quiz- (Que-ID : 2847)
Nonessential floral organs in a flower are
- sepals and petals
- anther and ovary
- stigma and filament
- petals only.
Q. 2 of Quiz- (Que-ID : 3045)
Angiosperm pollen is generally released at the
- 1 – celled stage
- 2 – celled stage
- 3 – celled stage
- male gamete formation stage
Q. 28 of Quiz- (Que-ID : 599)
Who is regarded as the father of modern chemistry ?
- Rutherford
- Einstein
- Lavoisier
- C. V. Raman
Q. 14 of Quiz- (Que-ID : 3557)
Which of the following is not a compound of carbon?
- Cinnabar
- Acetic acid
- Chloroform
- Methane
Q. 17 of Quiz- (Que-ID : 3235)
The term phyllotaxy is used to describe the
- type of ovary in a plant
- mode of arrangement of leaves
- type of roots
- arrangement of sepals and petals
Q. 12 of Quiz- (Que-ID : 2680)
Which enzyme converts prothrombin into thrombin
- Thrombin
- Thrombokinase
- Pepcase
- Ligase
Q. 14 of Quiz- (Que-ID : 3057)
Aleurone layer takes part in
- protection of delicate embryo
- enzyme synthesis
- transfer of food to cotyledons
- transfer of food from cotyledons to embryo tips
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