Luminous and Non Luminous Bodies

Q.

The objects that emit light of their own are called?

1. Non-luminous

2. Transparent

3. Translucent

4. Luminous

Q.

We can see a non-luminous object when light:

1. emitted by the object falls on the eye.

2. is reflected from the object towards our eye.

3. completely passes through the object

4. gets completely absorbed by the object.

Q.

Which of the following is not a luminous body?

1. Sun

2. Stars

3. Earth

4. Bulb

Q.

We cannot see luminous objects.

1. False

2. True

Q.

We cannot see luminous objects.

Say True or False.

1. True

2. False

Q. The objects which emit their own light are called luminous objects.

1. False
2. True

Q.

Can you help Dev classify the objects as non-luminous and luminous in the storeroom?

Table Lamp
Wall clock
Torch
Table
Floor
Ceiling lamp

Q. Any object that produces light is called luminous object.

1. False
2. True

Q. The objects that emit light of their own are called ___.

Q. An object that can emit its own light, is a luminous object.

1. False
2. True

Q. We cannot see objects which do not emit light.

1. True
2. False

Q. Moon emits light.

1. False
2. True

Q. Stars emit light.

1. True
2. False

Q. Why glass is called a non-luminous object? [1 mark]

Q. The objects which emit their own light are called luminous objects.

1. True
2. False

Q.

Which of the following is not a luminous body?

1. Sun

2. Stars

3. Human beings

4. Tube lights

Q.

The flame of a gas stove is________

1. Luminous

2. Non-luminous

3. Shadow

4. Reflecting body

Q.

Stars are good examples of

1. reflecting object

2. luminous object

3. non-luminous object

4. transparent object