UNICAL Physics 2011/2012 Past Questions

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

A gas which obeys Charles Law exactly has a volume of 283cm³ at 10°C. What is the volume at 30°C?

A.142cm³
B.293cm³
C.303cm³
D.566cm³

Electrical resistance is a property of an electric conductor that causes electrical energy to be converted to

A.beta particles
B.solar energy
C.heat energy
D.chemical energy

Which of the following has the greatest penetrating power?

A.beta particles
B.alpha particles
C.gamma rays
D.neutrons

The change in direction of a wave front as a result of a change in the velocity of the wave in another medium is called.

A.interference
B.diffraction
C.refraction
D.reflection

Which of the following is a reason why concrete floor feels colder to the bare feet than a mat on the same floor during the rainy season?

A.mat is better conductor of heat than the feet
B.mat loses heat to the bare feet at a faster rate than concrete floor
C.mat loss heat to the bare feet while the concrete floor extracts heat from them.
D.concrete floor is a better conductor of heat than the mat

A short sighted person needs one of the following types of lens to correct the vision

A.convex lens
B.concave lens
C.plano-convex lens
D.plano-concave lens

The motion of a body is simple harmonic if the

A.acceleration is always directed towards a fixed point
B.path of motion is a straight line
C.acceleration is directed towards a fixed point and proportional to its distance from the point
D.acceleration is proportional to the square of the distance from a fixed point

An object is placed 25cm in front of a convex lens of focal length 10cm. the image of the object will be

A.real, inverted and magnified
B.real, upright and magnified
C.real, upright and diminished
D.real, inverted and diminished

Any successful lift-off of space-craft uses the application of

A.Newton’s first law
B.Newton’s second law
C.Newton’s third law
D.all of the above

When a carpenter screws a nail into an object, the distance travelled into the object at a full circle of the heard of the screw is called

A.pitch
B.thimble
C.wavelength
D.moment