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प्रश्न
A ______ is a natural source of light.
पर्याय
seven
star
through
transparent
opaque
colors
shape
erect
inverted
luminous
candle
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उत्तर
A star is a natural source of light.
संबंधित प्रश्न
Write true or false of the following statement.
The moon is a natural source of light.
Fill in the blank
A medium through which light cannot pass is called the ....................
Match the following columns
| Column A | Column B |
| a. Wooden block | i. new moon's day |
| b. Sun | ii. rectilinear propagation of light |
| c. Umbra | iii. opaque body |
| d. Eclipse | iv. luminous body |
| e. Solar eclipse | v. complete dark park |
Is the moon a luminous object?
What do you understand by candle power?
Tick the correct answer.
Substance which don’t allow light to pass through them,
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
If VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
Why are traffic signals red in colour?
State whether the following statement is True or False.
An object can be seen only if it emits light
