Types of Reflection

Q.

An object becomes invisible when it undergoes ___ reflection.

Q.

The reflection of the parallel rays of a torch light can be seen by only one observer. Why? [3 MARKS]

Q.

When a light ray travels from medium 1 to 2, in which of the following cases it bends towards the normal?

1. Air to glass
2. Honey to water
3. Water to air
4. Glass to air

Q.

Ray incident on the surface is scattered at many angles then reflection is known as :

1. diffused reflection

2. regular reflection

3. disturbed reflection

4. normal reflection

Q.

When light strikes the surface of a non-metallic material it bounces off in all directions due to ___.

1. multiple reflections

2. regular reflection

3. refraction

4. reflection

Q.

Which type of surfaces produce regular reflection?

1. Smooth

2. Highly polished

3. Rough

4. Scratched

Q. Refraction of light occurs due to change in the speed of light in different media.

1. False
2. True

Q. The laws of reflection hold good for .

1. smooth surfaces
2. all kinds of surfaces
3. rough surfaces

Q.

The two types of reflection are diffused reflection and regular reflection.

1. True

2. False

Q. Which of the following is true regarding diffused reflection?

1. On a rough surface, light is reflected in different directions.
2. Light is not reflected.
3. On a smooth surface, light is reflected in different directions.
4. Light is completely absorbed.

Q. Which of the following is true regarding diffused reflection?

1. Light is reflected in same direction.
2. Light is reflected in different directions.
3. Laws of reflections are violted.
4. It takes place from rough surface.

Q.

How is incidence ray equal to reflected ray

Q. Which of the following is true regarding diffused reflection?

1. Light is reflected in different directions.
2. Light is reflected in same direction.
3. Laws of reflections are violted.
4. It takes place from rough surface.

Q.

An irregular crystal structure reflects all the light that falls on it’s as shown in the diagram.

Which of the following statement is true?

1. Law of reflection (∠i = ∠r) only holds good.

2. Law of reflection, “incident, reflected and normal all lie in the same plane” only hold good.

3. Both law's of reflection hold good.

4. Laws of reflection doesn’t hold good.