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10th Grade

16 Qs

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Assessment

Quiz

Physics

10th Grade

Practice Problem

Easy

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ALPHA CENTRE

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refraction of light by the earth’s atmosphere due to variation in air density is called

atmospheric reflection

atmospheric dispersion

atmospheric scattering

atmospheric refraction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The colored light that refracts most while passing through a prism is

Red

Yellow

Blue

Violet

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?

Rainbow

Twinkling of stars

Advanced sunrise and delayed sunset

Stars seem higher than they actually are

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One cannot see through the fog, because

refractive index of the fog is very high

fog absorbs light

light is scattered by the droplets

light suffers total reflection at droplets

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light

is scattered the most by smoke or fog

is absorbed the most by smoke or fog

is scattered the least by smoke or fog

moves fastest in air

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?

Dispersion of light

Scattering of light

Total internal reflection of light

Reflection of light from the earth

View Answer

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a white light falls on a triangular prism, the colour of light which will deviate the least is

violet

green

blue

red

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