Questions

A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10 s. If the height of each step is 15 cm, then what is his power?

Selling cost have to be incurred in case of

In Microsoft Word, font, font style, size, font color etc. are options of _____________

In Microsoft Word, _______ allows us to change the color of selected text.

The exchange of materials between blood and interstitial fluid occurs only at the _____.

In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.

If the angle of elevation of the top of a pillar from the ground level is raised from 30° to 60°, the length of the shadow of a pillar of height 503 will be decreased by