Questions

A rocket is launched to travel vertically upward with a constant velocity of 20 m/s. After travelling for 35 seconds, the rocket develops a snag and its fuel supply is cut off. The rocket then travels like a free body. The height achieved by it is

A lens has a power +2.0 D. The type of lens and its focal length will be

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?

A unit of power is called a

Mount Semeru, an active volcano, located in

Kind of cell that does not have a nucleus

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriateoption. If a sentence is free from error, select 'No error'.

My sister-in-laws (1)/ who lives in Kolkata (2)/ have come to stay with us. (3)/ No Error (4)