Questions

ΔABC is similar to ΔDEF. If the ratio of similar sides is K:1, the ratio of their areas is

If the momentum of a body is tripled, its KE will

Two particles with charges q1 and q2 are kept at a certain distance to exert force F on each other. If the distance is reduced to one-fifth, then the force between them is

What is the principal focus of a spherical mirror?

__________ is defined as the output per unit of variable input

In the following question, sentence given with blank to be filled in with an appropriate word(s). Four alternatives are suggested for the question. Choose the correct alternative out of the four and indicate it by selecting the appropriate option.

The gate _______ by the watchman on duty.

A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?

‘Protocol for Star Rating of Garbage-Free Cities’ launched on January 20, 2018 will be rating cities on ______ rating system.