SCERT Maharashtra Question Bank solutions for 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021 chapter 6 - Refraction of light [Latest edition]

Due to _______ pencil looks bent in water, in the given experiment.

In the following diagram if ∠ i = 40°, then ∠ e = _______?

A ray of light strikes the glass slab at an angle 40° with the surface of the slab. Then the angle of incidence will be _______°.

We can see the Sun even when it is little below the horizon because of ______.

_______ is the unit of refractive index.

n = _______. This law is also called as Snell’s law.

Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.

If the refractive index of air with respect to glass is 2/3. What is the refractive index of glass with respect to air?

The process of separation of light into its component colours while passing through a medium is called _______.

Light changes its direction when going from one transparent medium to another transparent medium. This is called _______.

₂n₁ : Refractive index of medium 2 with respect to medium 1 : : ₁n₂ : _______

Refractive index of air : 1.0003 : : refractive index of water : _______

Identify the wrong figure from the following.

The incident rays and refracting rays are on opposite sides of the normal.

Purple has the lowest refractive index.

The speed of light varies in different media.

Write an Explanation.

Critical angle

Write scientific reason.

The sun appears on the western horizon for some time after sunset.

Write scientific reason.

The bottom of a pond appears raised.

Write scientific reason.

Stars twinkle but we do not see the twinkling of planets.

Write scientific reason.

The coin disappears in a vessel as it is seen from a specific location. But as soon as the water is poured into the vessel to a certain level, the coin appears.

Write scientific reason.

A pencil appears to be broken near the surface of water.

If the absolute refractive index of water is 1.36, find the speed of light in water. (Speed of light in vacuum = 3 × 10⁸ m/s.)

If the absolute refractive index of glass and water are 3/2 and 4/3 respectively, what is the refractive index of glass with respect to water?

Solve the following example.
Speed in first medium, v₁ = 3 × 10⁸ m/s 
Speed in second medium, v₂ = 2 × 10⁸ m/s
Then ₂n₁ = ?

Draw a neat and labelled diagram for dispersion of light.

Observe the given figure and name the following.

What is refraction of light? Explain with the help of example.

State the laws of refraction of light.

Solve the example.
If the speed of light in a medium is 1.5 × 10⁸ m/s, what is the absolute refractive index of the medium?

Rainbow is a beautiful natural phenomenon. It is the combined effect of a natural three processes together produced by light. Write it into the circle.

Observe the given figure and write appropriate phenomenon of light in the box.

Observe the given figure and write appropriate phenomenon of light in the box.

Observe the given figure and write appropriate phenomenon of light in the box.

Observe the given figure and answer the following questions.

1. Which colour light rays bend most?
2. Which colour light rays bend least.
3. What is the wavelength of violet light rays?