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•  Science important question answer - Axom Future 

1.What is the Unit of electric charge?

Ans: Coulombo

2: An Object is placed in front of a 

concave lens. Its image will be:

Ans: Virtual and erect

3: Ohms metre is the unit of

i) Current 

ii) Resistance

iii) Resistivity 

Ans: iii) Resistivity 

4: Solar Energy is due to

i) Fission reaction

ii) Fusion reaction 

iii) Chemical reaction

Ans: ii) Fusion reaction

5: Angstrom is a unit of small

i) Distance

ii) Mass

iii) Volume

Ans: i) Distance

6: A finely cut piece of diamond sparkles

because

i) It is radioactive

ii) It emits light

iii) Of total Internal reflection

Ans: iii) Of total internal reflection

7: A concave mirror has a radius of

curvature of 40 cm. Its focal length

i) 40 cm

ii) 20 cm

iii) 80 cm

Ans: 20 cm

8: Charge carriers in metallic conductors

are

i) Electrons

ii) Neutrons

iii) Protons

Ans: i) Electrons

9: Which of the following is not an

addition polymer?

i) Nylon

ii) PVC

iii) Polythene

Ans: i) Nylon

10: Which of the following element has

highest atomic radii?

i) Li

ii) B

iii) N

Ans: i) Li

Important question answer in Assamese- Click here

11: The Chief constituent of CNG is

i) Methane

ii) Isobutane

iii) Propane

Ans: i) Methane

12: The frequency range of audiable

sound is

i) 20 – 20,000 KHz

ii) 20 – 20,000 Hz

iii) 20 – 200 KHz

Ans: ii) 20 – 20,000 Hz

13: The universal law of Gravitation was

propounded by

i) Kelper

ii) Galileo

iii) Newton

Ans: Newton

14: Electronic Potential is

i) A vector quantity

ii) A Scalar quantity

iii) Neither a Scalar nor a vector

Ans: ii) A scalar quantity

15: What sound wave is refracted from

air to water, then which of the will

remain unchanged?

i) Frequency

ii) Wavelength

iii) Velocity

Ans: i) Frequency

16: Sound travels at maximum speed in

i) Vacuum

ii) Air

iii) Steel

Ans: Steel

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17: Which Instrument is used to

measure altitudes in aircraft?

Ans: Altimeter

18: Which colour is the complementary

colour of yellow?

Ans: Red

19: The speed of light is maximum in

i) Diamond

ii) Glass

iii) Vacuum

Ans: iii) Vacuum

20: Which Instrument is used to

measure depth of ocean

Ans: Fathometer