Myopic defects in the human eye can be corrected through the
use of a

A charged particle is moving in a uniform magnetic field. if the
direction of motion of the charged particle is parallel to the
magnetic field, the path of the charge will

What happens to a water pool on a day when the humidity of
the air is very low?

A satellite moves in a circular orbit of radius 4R round the
earth. The acceleration of the satellite in terms of g is

I.Chemical II.Sound III.Electricity

Which of the above forms of energy can directly be converted
to light energy?

If the distance between the object and the pinhole of a pinhole
camera is reduced by half the size of the image of the object

An object is placed 15cm in front of a plane mirror. If the mirror
is moved further 5cm away from the object and the image is

Which of the following statements is correct about a machine?

The instrument used to view stars is the

What is the angular magnification of a telescope having
objective and eyepiece lenses of a focal lengths 30cm and
3cm respectively?

A wire of length 10m is cooled from 50 C to 10 C. Calculate
the decrease in the length of the wire. [c = 3 x 10^-4 K ]

When an athlete perspires after running, he loses heat through

The rate of cooling of a heated quantity of liquid in an
enclosure depends on the

The heat required to raise a mass of a substance through 1K is
known as

A boy in a barber’s shop sits between two parallel mirrors. The
number of images observed by him will be

Semiconductor is a class of solid whose conductivity increases
with an increase in

Which of the following statements is NOT correct?

A dynamo primarily converts

A saturated vapour pressure of a liquid increases when the

What force has to be exerted on a mass 60kg to give it an
acceleration of 10ms vertically upwards?
[g = 10ms ^-2

A metre rule is pivoted at its mid-point with a vertical force of
10N hanging from the distance 30cm from the mid-point. At
what distance must a 15N force hang to balance the ruler
horizontally?

A projectile is fired from the ground level with a velocity of
300ms at an angle of a 30 to the horizontal.
Calculate the time taken to reach the maximum height?
[g = 10ms ]

A train with an initial velocity of 20ms is subjected to a
uniform deceleration of 2ms . The time required to bring the
train to a complete halt is

Which of the following electromagnetic waves has the shortest
wavelength?

A radioactive isotope has a decay constant of 10^-6s^-1 .
Calculate its half – life?

Which of the following waves is both transverse and
mechanical?

The relative density of a liquid is the ratio of the

What will happen to the pressure of a gas if its temperature is
reduced to -273 C?

Which of the following does Not use magnetic effect of current
to function?

Vapour is said to be saturated on top of an enclosed liquid if

_________

A pool of water appears to be 1.00m deep when viewed
vertically from above. What is the actual depth of the pool?
[Refractive index of water = 1.33]

Shadows and eclipse result from the

Which of the following is obtained when a magenta is mixed
with green colour?

Which of the following instruments can be used to measure
current in an a.c circuit?

Which of the following statements about wave motion is
correct?

A satellite revolving around the earth is kept on its orbit by

A manometer is an instrument used for measuring

A body which weighs 50N in air displaces 3.7kg of water when
partially immersed in water. Calculate the upthrust on the
body?

The impulse of a force is deduced from Newton’s second law
as

Boiling occurs when the vapour pressure of a liquid is

If the magnification of a virtual image formed by an object
10cm from a convex less is 3, then the focal length of the lens
is

Which of the following statements is Not true about atoms?

The frequency of beats produced when two tunning forks of
frequencies 258Hz and 270Hz are sounded close to each
other

Calculate the inductance of a coil of resistance 30 connected
to a 100V a.c source if the coil draws an r.m.s current of 2A