Dnadiya raas is not allowed after 10.00 pm. Why?

Use your brain power Sometimes, you may notice a black powder or white discs floating on the pickle or murabba, when a jar is opened after a long time. What exactly is this? Why are such food items not good to eat?

Sometimes, you may notice a black powder or white discsfloating on the pickle or murabba, when a jar is opened after a long time. What exactly is this? Why are such food items not good to eat?

Use your brain power: Why is there a thick bed of sand for a high jumper to fall on after his jump?

The velocity of sound in a gas ,in which two waves of length 1.00 m and 1.01 m produce 10 beats in 3 second is

The luster of the surface of the aluminium utensils in the house is lost after a few days. Why does this happen?

Explain the following: When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time, Why does this happen? Write the chemical equation.

If the foci and vetrices of an ellipse be (pm 1,0) and (pm 2,0), then the minor axis of the ellipse is