A photographer wants to take a photo of 3 students out of 6 students of whom two do not want to participate in photo. The no. of ways of taking photo is:
Explain the formation of mirage? (AS_(1))
Have you seen a mirage which is an illusion of the appearance of water on a hot road or ion a desert ?
If you are walking on the moon, can you hear the sound of stones cracking behind you ? Can you hear the sound of your own footsteps ?
Can you say that salt is a liquid on the basis of change in its shape? Justify your answer. Take a sponge. Observe its shape.
How can you convert a galvanometer into an voltmeter? Can you use Voltmeter to measure current in a circuit?
How can you find the age of fossiles ?
What is photo voltaic cell ?
The anode of a simple photo emissive cell is "_________"
NCERT TAMIL-REFRACTION OF LIGHT AT PLANE SURFACES-THINK AND DISCUSS
