Advertisements
Advertisements
प्रश्न
Write true or false of the following statement.
The moon is self-luminous.
विकल्प
True
False
Advertisements
उत्तर
False
APPEARS IN
संबंधित प्रश्न
How do we see objects around us ?
How does light make an object visible?
List two artificial sources of light.
What do we call a substance through which we cannot see light? Give an example of such a substance.
From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent
Write true or false
The moon has its own light.
Answer the following.
Name some sources of light that are not hot.
Answer the following.
Differentiate between luminous and non-Luminous objects.
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 |
Using a pinhole camera a student observes the image of two of his friends, standing in sunlight, wearing yellow and red shirt respectively. What will be the colours of the shirts in the image?
