Light

Q.

Differentiate between regular and diffused reflection.

Q.

Why does light travel in a straight line?

Q.

Which type of object allows light to pass completely through it?

1. Transparent

2. None of these

3. Opaque

4. Translucent

Q. The object that emits its own light is called object.

1. luminous
2. opaque
3. transparent
4. non-luminous

Q.

Define irregular reflection.

Q.

What is the speed of dark?

Q. What will be the examples of translucent objects
Can they be butter paper and fluorescent paper

Q.

When light strikes a transparent object then

1. most of the light passes through the object and some gets absorbed.

2. most of the light passes through the object, some gets reflected and the rest gets absorbed.

3. most of the light passes through the object.

4. most of the light passes through the object and some gets reflected.

Q.

Name two natural and two man-made sources of light?

Q.

Define luminous bodies?

Q. A body which emits light by itself is called_______.

1. luminous body
2. non-luminous body
3. reflecting body
4. transparent body

Q.

Which material allows light to pass through it partially?

1. None of these

2. Transparent

3. Opaque

4. Translucent

Q. Butter paper is an example of ___ object.

Q.

Is light necessary to see objects? [1 MARK]

Q.

Which of the following materials allow light to pass through it?

1. Transparent

2. Opaque

3. Both A and B

4. Translucent

Q.

___ material allows light to pass partially through it.

Q. Which of the following objects is luminous?

1. The Sun
2. Earth
3. The Moon
4. Mirror

Q.

During night time, the Moon produces more light than the Sun.

1. True

2. False

Q. The shadow of a/an object will be more prominent than the shadow of a/an object under the same conditions.

1. opaque
2. translucent
3. light
4. heavy

Q.

Light helps us to ___ objects.

Q. We are able to see the objects around us due to _____ reflection.

Q. Which among the following objects is transparent?

1. Wax paper
2. Thick plastic sheet
3. Wooden block
4. Clear glass

Q. Can a body be luminous at some point of time and non luminous at others?

Q.

In a completely dark room, we are not able to see our faces. Why?

Q. When a beam of light is projected, objects cast a shadow, while objects do not.

1. opaque
2. transparent
3. light
4. heavy

Q.

Which object allows light to pass through it partially?

1. Translucent

2. None of these

3. Opaque

4. Transparent

Q. Can a body be luminous at some point of time and non luminous at others

Q. Which of the following objects is luminous?

1. The Sun
2. Earth
3. The Moon
4. Mirror

Q. Which of the following is a non-luminous object?

1. Bulb
2. Sun
3. Candle
4. Moon

Q.

Light travels in ___________.

1. a curved path

2. a circular path

3. a straight line

4. a zig-zag path