UNICAL Physics 2008/2009 Past Questions

Practice each question, then open it to see the full details.

The distance between two successive crest or trough is

A.amplitude
B.wavelength
C.frequency
D.wave distance

An object is placed 15cm in front of convex mirror and an image is produced 5cm behind the mirror. Calculate the focal length of the mirror.

A.7.5cm
B.10cm
C.7.6cm
D.20cm

A ball is projected horizontally at 15m/s from a point 20m above a horizontal surface (g = 10m/s²). The magnitude of its velocity of the mirror.

A.10
B.15
C.20
D.25

A malaria patient has a body temperature of 39.5°c. Convert this temperature to °F.

A.83.2°F
B.103.1°F
C.77.4°F
D.147°F

Positive charges usually move from

A.higher to lower potential areas
B.lower to higher potential areas
C.north to south
D.higher resistance to lower resistance areas

A truck travelling with a velocity of 40m/s applies the brakes and comes to a halt after 20s. What is the distance traveled by the truck before coming to a halt

A.40m
B.800m
C.400m
D.10m

In a harmonic oscillation of a simple pendulum, one of the following statements is correct

A.the potential energy and the kinetic energy of the bob are equal at all time
B.the potential energy is equal to the kinetic energy at the central position of the oscillation
C.the potential and kinetic energies of the bob are maximum at the maximum height of the oscillation
D.none of the above

If the linear expansivity of a metal rod is 4 × 10^-5 per °C, what will be the new length of the rod if it is heated from 15°C to 95°C from its original length of 20cm

A.0.064cm
B.0.64cm
C.20.64cm
D.20.064cm

The heat required to melt at 0°C to water at the same temperature is called?

A.apparent heat of fusion
B.apparent heat of vaporization
C.latent heat of vaporization
D.latent heat of fusion

Which of the following is used in a nuclear reactor to slow down fast moving electrons?

A.carbon dioxide gas
B.liquid sodium metal
C.concrete shield
D.graphite rode