Author Archives: dinesh

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SCIENCE

Which one of the metal is liquid at normal temperature- a) zinc b) mercury c) sodium d) water
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SCIENCE

The least distance of distinct vision for a young adult with normal vision is about a) 25 m b) cm  c) 25 cm d) m
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science

The far point of a myopic person is 80 cm in front of the eye . What is the nature and power of the lens required to correct the...
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science

The change in focal length of an eye lens is caused by the action of  A) Retina B) Iris C) Pupil D) Ciliary muscles
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science

The human eye forms the image of an object at its a) C0rnea                   b) iris          ...
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Probability

A box contains 20 balls out of which 12 are red and 8 are green . 5 balls are randomly drawn from the box with replacement . What is...
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3 D

The angle between the planes x+y+2z=6   and 2x-y+z=9 is a) 45                                b)  30...
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3 D

3 D
A. 1                                         B. 3          ...
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3 D

Find the image of  the point ( 1,6,3 ) in the line x/1 = y-1/2 = z-2/3 . a) 1,0,7                  ...
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clock

How many times are the hands of a clock at right angle in a day. A) 22             B) 24        ...
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clock

How many times in a day , the hands of a clock are straight. A) 22                          ...
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BOAT AND STREAM

A boat goes to 40 km upstream in 8 hours and down stream in 5 hours . What is the speed of boat in still water? a) 6 km/hr...
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circle

The circumference of a circle exceeds its diameter by 18 cm . Find the radius of the circle. a)   4:2                ...
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RATIO

The ratio of the radius of two circles is 3:4 .Find the ratio of their circumferences. a) 3:4                      ...
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TRIANGLE

The base of an isosceles triangle is 12 cm and its perimeter is 32 cm . Find its area. a) 48                b)...
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SIMPLE INTEREST

A sum of money lent at simple interest amounts to RS 3224 in 2 years and Rs 4160 in 5 years . Find the sum and the rate of...
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number

Out of three consecutive odd numbers eight times the first number is equal  to addition of thrice the third number and adding 5 to twice the second number ....
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