Questions

The bending of light when it passes around a corner or a slit is due to ______.

Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?

In December 2015, NASA's Curiosity Mars rover found the presence of ____, which will help scientists learn about the ancient wet environment.

Which of the following is an ore of iron?

Photosynthesis in plants takes place in

Study the information carefully to answer the following questions: An urn contains 5 red, 3 green, 2 blue and 4 yellow marbles. If three marbles are picked at random, what is the probability that one is green and two are yellow?

If cosecA - cotA = x, then the value of x is

How long does a train, 75 m long, moving at 60 km/hr take to pass a certain telegraph post?