Questions

Two circles of same radius intersect each other at P and Q. If the length of the common chord is 30 cm and distance between the centres of the two circlesis 40 cm, then what is the radius (in cm) of the circles?

___ is a multicellular organism.

Name the organ where the embryo develops:

India has changed over to the decimal system of coinage in___________.

Which of the following has the same unit as energy?

What is the measure of temperature considered as normal in human body?

Which of the following is used to detect current in a circuit?

A man lifts a luggage of 25 kg from the ground and puts it on the head, 2.5 m above the ground. If the value of g = 10 m/s2, then the value of work done by him on the luggage is