Advertisements
Advertisements
प्रश्न
Is the moon a luminous object?
Advertisements
उत्तर
Moon is not a luminous body, it is a non-luminous body. It has no light of its own.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
The moon is self-luminous.
What do we call a body that shines on its own?
Write the names of some cold light-emitting objects.
Fill in the blank
Speed of light in vacuum is .................
Write true or false
The stars have no light.
Answer the following.
What is light?
Answer the following.
Differentiate between luminous and non-Luminous objects.
When a ______ object comes in the way of light, light passes ______ it.
Match the following.
| 1. | Ratio of height of image to height of object. | Concave mirror |
| 2. | Used in hairpin bends in mountains. | Total internal reflection |
| 3. | Coin inside water appearing slightly raised. | Magnification |
| 4. | Mirage | Convex mirror |
| 5. | Used as Dentist’s mirror. | Refraction |
Observe the picture given in the following figure carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
