Advertisements
Advertisements
प्रश्न
Fill in the blank
Speed of light in vacuum is .................
Advertisements
उत्तर
Speed of light in vacuum is 300000 km/sec
APPEARS IN
संबंधित प्रश्न
Select the correct alternative.
The natural source of light is
Write true or false
The stars have no light.
Answer the following.
What is light?
Choose the translucent substance from the following
Describe the pictures.
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.
Velocity of light is greater in denser medium than in rarer medium
Boojho made light from a laser torch fall on a prism. Will he be able to observe a band of seven colours? Explain with a reason.
A ray of the light incident along normal to the mirror ______ its path.
Light is a form of energy and it travels in a straight line.
