Questions

Blocking in experimental design is useful because it

If a body is whirled in a circle, then the work done on it ___.

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

Boiling point of water is ___.

When was the battle of Chillianwala fought?

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct

1. My friend Peter went to live in a village.
P. But it was a very slow animal.
Q. So Peter bought a donkey for five hundred rupees.
R. One day his neighbour told him that he must buy a donkey.
S. Every family there had a donkey to carry things for them.
6. It did not like to work.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

"Jim Crow" shuns the mountains for reasons satisfactory to himself; not so the magpie, the raven, and __________ mischief-maker, Clark's nutcracker. All of which keeps the bird-lover from the East in an ecstasy of surprises until he has _____________ accustomed to his changed environment. One cannot help ___________ into the speculative mood in view of the sharp contrasts ______________ the birds of the East and _________ of the West.

magpie, the raven, and __________ mischief-maker, Clark's nutcracker.