- Section 1
71. |
Intensity of sound has |
|||||||
|
72. |
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from |
|||||||
|
73. |
Minimum number of unequal vectors which can give zero resultant are |
|||||||
|
74. |
It is easier to roll a barrel full of coal tar than to pull it because |
|||||||
|
75. |
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is |
|||||||
|