List of top Questions asked in Common Entrance Test Delhi Polytechnic

Very big particles scatter :
Hypermetropia can be corrected by using :
An object is placed at a distance of 10 cm from a convex mirror of radius of curvature 30 cm. Where is the position of the image ?
The mirror used as shaving mirror is :
Convex lens forms the image of Sun at :
When the object is placed at 2F (centre of curvature) in front of a concave mirror then its image is formed at :
In domestic circuit the colour of neutral wire is :
A bulb of 60 watt runs for 50 hours. How much electrical energy is consumed ?
A mirror always forms virtual and diminished image it is a :
1 kWh = _____.
Which of the following waves do not require any kind of medium to propagate ?
Two objects of masses 1 kg and 3 kg have equal momentum. What is the ratio of their kinetic energies ?
Inside a solenoid the magnetic field is :
Material used for making a fuse wire must have :
Heating effect of current is used in :
The human audible range of sound is from 20 Hz to ____ :
An object of mass 15 kg is moving with a uniform velocity of \(4 \text{ ms}^{-1}\). What is the kinetic energy possessed by the object ?
Relative density of silver is 10.8. The density of water is \(10^3 \text{ kg m}^{-3}\). Density of silver will be :
SI unit of universal gravitational constant (G) is :
How does the force of gravitation between two objects change when the distance between them is reduced to half ?
1 Newton = ____ Dyne.
The image formed by a concave mirror, when the object is placed between pole and focus :
Ultrasonic wave is a :

In the Adjoining figure, if O is the centre of the circle of radius 5cm, OP=13 cm, where PQ and PR are tangents to the circle from point P. Length PR is :

A sound wave has a frequency of 2 KHz and wavelength 35 cm. The time taken by it to travel a distance of 7 km will be :