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Search Results for: and kept at

## Is it true that the formula for the potential energy of any object having mass m and kept at height h from the earth’s surface, is mgh?

## A man is 180 cm tall and his eyes are 10 cm below the top of his head. In order to see his entire height right from the toe to head, he used a plane mirror kept at a distance of 1 m from him. The minimum length of the plane mirror required is :

## Three men, A,B and of mass and are standing on a plank of mass , which is kept on a smooth horizontal plane. If and exchange their positions, then will shift:

## Cards bearing numbers 1,3,5, ……….., 35 are kept in a bag. A card is drawn at random from the bag. Find the probability of getting a card bearing a number divisible by 3 and 5.

## Cards bearing numbers 1,3,5, ……….., 35 are kept in a bag. A card is drawn at random from the bag. Find the probability of getting a card bearing a prime number less than 15.

## The length of a ladder is exactly equal to the height of the wall it is leaning against. If the lower end of the ladder is kept on a bench of height 3 m and the bench is kept 9 m away from the wall, the upper end of the ladder coincides with the top of the wall. The height of the wall is

## Is it true that an iron nail loses its shine when kept in a soft drink and becomes dull?

## Is it true that dilute HCl can be kept in copper container and dilute HNO3 can be kept in an aluminium container?

## A lending library has a fixed charge for the first three days and an additional charge for everyday thereafter. Saritha paid Rs 27 for a book kept for 7 days while Susy paid Rs 21 for a book she kept for 5 days. Find the fixed charge and the charge for each extra day.

## From a pack of cards, the following cards are kept face down.What is the probability of Suhail winning if he picks up a face card? And Reshma wins, if she picks up a 4. What is the probability of Reshma winning?