Rainbow is produced when sunlight falls on drops of rain. Which of thefollowing 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 sum at dusk
2. Colure of the sun at dawn
3. Moon being visible at dawn
4. Twinkle of stars in the sky
5. Polestar being visible in the sky
Which of the above are optical illusions?ppppppp
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?
The most important fishing grounds of the world are found in the regions where