Many transplanted seedlings do not grow because
Rainbow is produced when sunlight falls on drops of rain.Which of the following physical phenomena are responsible for this?
1. Dispersion 2. Refraction 3. Internal reflection
Select the correct answer using the codes given below.
Consider the following phenomena:1. Size of the sun at dusk2. Colour of the sun at dawn3. Moon being visible at dawn4. Twinkle of stars in the sky5. Polestar beingvisible in the sky
Which of the above are optical illusions?
Ball bearings are used in bicycles, cars, etc., because
Fruits stored in a cold chamber exhibit longer storage life because
Which one among the following industries is the maximum consumer of water in India?