ECAT Pre General Science Online Test

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  • Chapter NameCh 13 - Current Electricity
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ECAT Pre General Science Online Test

  • Total Questions30

  • Time Allowed30

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ECAT Pre General Science Online Test

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Question # 1

The work done on the system by the environment is considered as

Question # 2

With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Question # 3

A train cover 90 km in half an hour. the time taken by it to travel 15 km will be:

Question # 4

Energy required by an electron revolving in certain orbit to jump to an excited state is called:

Question # 5

The process in which energy is dissipated from the oscillating system is known as

Question # 6

A convex lens acts as diverging lens when the object is placed:

Question # 7

Acceleration of a body at any particular instant during its motion is known as

Question # 8

Rate of decay is actually described by.

Question # 9

The closed loop gain of the inverting amplifier is written as

Question # 10

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

Question # 11

If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by

Question # 12

The nature of radiations emitted by a hot body depends upon its:

Question # 13

A 2 kg block is held 1 m above floor for 50 seconds. The work done is:

Question # 14

When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is

Question # 15

As the current flows through the wire

Question # 16

The angle which specifies the instantaneous value of the alternating voltage or current is called

Question # 17

A diatomic gas molecule has

Question # 18

Maximum density of H2O is at the temperature

Question # 19

The graph showing the variation of displacement with time is a

Question # 20

Bernoulli's equation is based upon law of conservation

Question # 21

A wire is bent into a ring of radius R is given a charge q. The magnitude of the electrical field at the centre of the ring is

Question # 22

The molecules or ions in a crystalline solids are

Question # 23

At ordinary temperature, an increase in temperature increases the conductivity of

Question # 24

All the valence electrons present in a crystal of silicon are bound in their orbits by

Question # 25

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Question # 26

Surface tension of water is reduced by adding

Question # 27

A process in which no heat enters or leaves the system is called

Question # 28

Gas constant per molecule is called:

Question # 29

A car is turning around a corner at 10 m/sec as it travels along an arc of circle. If value of centripetal acceleration is 10 m/sec2in this case, find radius of the circular path:

Question # 30

Nucleus consists of

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