The ice and steam points of mercury-in-glass thermometer of centigrade scale and of uniform bore correspond respectively to 3cm and 19cm lengths of the mercury thread when the length is 12cm, the temperature is
See more
1981
Which of the following does NOT describe the image formed by a plane mirror?
See more
1981
When fixed mass of an ideal gas expands at constant temperature, which property of the gas molecule increases?
See more
1981
The principle of transmissibility of pressure in a fluid at rest in all directions is known as
See more
1981
The following types of waves are transverse EXCEPT
See more
1981
The latent heat of fusion of a substance is the heat required to
See more
1981
Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is for…
See more
1981
Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum?
See more
1981
An inclined plane of angle \(\theta\), acting as a simple machine, has a velocity ratio
See more
1981
Which of the following elements are real magnetic materials?
See more
1981
If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called
See more
1981
When a ray of light passes from water to glass, it is
See more
1981
Heat was supplied to a block of ice at 0oC until half of it melted. Which of the following statements is true?
See more
1981
An example of a scalar quantity is
See more
1981
A cell of e.m.f 2V and internal resistance 1\(\Omega\) supplies a current of 0.5 amps to a resistance whose value is
See more
1981
Which of the following is NOT an effect that can be produced by an electric current?
See more
1981
The absolute refractive indices of glass and water are \(\frac{3}{2}\) and \(\frac{4}{3}\) respectively. The refractive index at the interface when a ray travels from water to glass is
See more
1981
The driver in a motor car, of which the total mass is 800kg and which is traveling at 20ms-1, suddenly observes a stationary dog in his path 50m ahead. If the car brakes can exert a force of 2000N, what will most likely…
See more
1981
All of the following frequencies are overtones of 320 Hz EXCEPT