Question # 1

If the length of a simple pendulum is 0.25 m its time period would be

Choose an answer

1.0 s

2.0 s

3.0 s

4.0 s

The values 1 and 0 are designated as:

Choose an answer

Continuous values

Binary values

Boolean values

Decimal values

Either (B) and (C)

Most OP-AMP operates with

Choose an answer

+ 6 V supply

+ 10 V supply

+ 12 V supply

+ 24 V supply

The phase at the positive peak of an A.C. cycle is:

Choose an answer

0º

90º

180º

0 andᏘ

Ꮨ/2 and 3Ꮨ/2

magnetic field is a:

Choose an answer

Vector quantity

Scalar quantity

Scalar as well as scalar quantity

Any of (A) or (B)

Neither (A) nor (B)

The term drift velocity is used when the ends of a wire are:

Choose an answer

Connected to a laser source

Connected to a voltage source

Not connected to a voltage source

At different values of potential

Both (B) and (D)

A potential barrier of 0.7 V exists across p-n junction made from:

Choose an answer

Germanium

Silicon

Arsenic

Gallium

Indium

Sound waves in air always

Choose an answer

Longitudinal

Transverse

Stationary

Electromagnetic

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

Choose an answer

polonium uranium

uranium and radium

polonium and radium

none of these

The device in which induced emf is statically induced emf is:

Choose an answer

Transformer

AC generator

Alternator

Dynamo

A force of 50 dynes is acted on a body of mass 5 g which is at rest, for an interval of 3 seconds, then impulse is

Choose an answer

0.15 x 10^-3Ns

0.98 x 10^-3Ns

1.5 x 10^-3Ns

2.5 x 10^-3Ns

Any superconductor with critical temperature above 77 K, is referred as

Choose an answer

low temperature superconductor

high temperature superconductor

very low temperature superconductor

none of them

A body is moving with constant velocity of 10 m/sec in the north east direction. Then its acceleration will be:

Choose an answer

10 m/sec2

20 m/sec2

30 m/sec2

Zero

Examples of polymeric substances are:

Choose an answer

Plastic

Synthetic rubbers

Zirconia

All of these

Both (A) and (B)

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

Choose an answer

Longitudinal wave

Transverse wave

No vibration at all

None of them

The SI units of momentum is

Choose an answer

kg m s^-2

kg ms

kg m s²

N-s

When a wave is travels from one place to another, it transfers:

Choose an answer

Matter

Energy

Momentum

Both B and C

At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be

Choose an answer

81 K

355 K

627 K

627°C

Which of the following can become a good temporarily magnet

Choose an answer

iron

steel

both of them

none of them

The waves produced in a microwave oven have wavelength.

Choose an answer

12 mm

12 cm

12 m

12 mm

Liquids and gasses have

Choose an answer

zero viscosity

non-zero viscosity

very large viscosity

very small viscosity

Fraction of the decaying atoms per unit time is called

Choose an answer

decay atom

decay element

decay constant

decay

According to slok's law, drag force depends on

Choose an answer

Radius of the spherical body

Terminal velocity of body

Coefficient of viscosity

All of above

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Choose an answer

125 K

25 K

263 K

163 K

The electric flux from a closed surface

Choose an answer

Is independent of the shape of the surface

Depends on the charge enclosed by the surface

Both a and b

None of the above

What is the current is a 2 x 10⁶ohm resistor having a potential difference of 2 x 10³volts?

Choose an answer

10^-1A

10^-2A

10^-4A

1 mA

The weight 'mg' of the bob is resolved into

Choose an answer

one component

two components

three components

four components

On heating, glass gradually softens into a paste like before it becomes a very viscous liquid at almost

Choose an answer

600°C

7600°C

800°C

900°C

In the above figures, tell which set is graphs shows that a body is moving uniform velocity:

Choose an answer

(i) and (ii)

(ii) and (iii)

(i) and (iii)

(ii) and (iv)

Two water pipes of diameters 4 cm and 8 cm are connected with a supply line. The velocity of flow of water in the pipe 4 cm diameter is

Choose an answer

1/4 times

4 times

Twice

1/2 of 8 cm diameter pipe

If every particle of the flow that passes a particular point, moves along the same path as followed by particles which passed the point earlier, then this flow is said to be

Choose an answer

turbulent

streamline

abrupt

none of them

More Classes

Other Links

ECAT Physics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer