Questions

From a point on a bridge across the river, the angles of depression of the banks on opposite sides of the river are 30° and 45° respectively. If the bridge is at a height of 2.5m from the banks, then the width of the river is (take √3 = 1.732)

To hear a distinct echo the time interval between the original sound and the reflected sound must be at least

During a recession _____

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.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong. Politics is the _____ of expediency and need not always be _____. If something is wrong and _____ expedient, it cannot be _____.

it cannot be _____.

Sexual reproduction in Algae that takes place through fusion of two dissimilar size gametes is called?

Glass is also called ________.

NaCl has ______.

What is the capital of Norway?