UNN Physics 2011/2012 Past Questions

Two stores P and Q of different masses were projected horizontally at different angles of 15° and 75° respectively but with the same velocity. The ranges covered by the stones will be

If the torque on a body is zero, the angular momentum of the body will

For which of the following quantities is the derived unit ML²T^-2 correct?
I. Moment of force
II. Acceleration
III. Work
IV. Momentum

In which of the following are the substances arranged in the descending order of their conductivities?

The linear expansivity of brass is 2 x 10^-5 /°C, the volume of a piece of brass 10cm³ at 0°C, what will be its volume at 100°C?

The thermometric property of the thermocouple is that its

A concave lens of focal length 20cm forms an image 1/2 the size of the object. The object distance is

The quality of sound depends on

A student with a sight defect has a least distance of distinct vision of 150 cm. For him to read a material placed at a distance of 25 cm, what is the focal length of the glasses he should wear?

A dynamo primarily converts

Three capacitors 2μF, 3μF, and 6μF are connected in series. If the pd across the system is 12v, the pd accross the 6μF capacitor is

A current of 0.5A flows through a resistor when connected to a 40V battery. The energy dissipated in 2 minutes is

Which of the following is most strongly deflected by a magnetic field?

The major difference between a semiconductor and a pure metal is that

A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of 2eV are ejected. The work function of the metal is