Question
A room 20 m long, 16 m broad and 8m high has 2 windows
of 1 m and `1(1)/(2)` m and a door of 2m `xx` `1(1)/(2)` m. Find the cost of papering the walls with paper 50cm wide at the rate of 1.25 paise per metre?Solution
Which of the following electromagnetic waves are used for detection like Geiger tubes?
The unit of electric power is — Â
The energy stored in a stretched spring is:
Which of the following vitamins are called fat-soluble vitamins?
A closely wound solenoid 40 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 2 cm. If the current carried is 8.0 A, e...
The amount of light entering in eye is controlled by:
Which of the following decays does not change the atomic number of the nucleus?
A conducting rod of length 0.2 m is rotated with angular velocity 10 rad/s about one end in a uniform magnetic field of 0.5 T perpendicular to the plane...
Which of the following quantities is a scalar? Â