Question # 1

Unit of density is:

Choose an answer

Kg/m3

kg/m2

kg/m

kg

Moon is our satellite:

Choose an answer

Artificial

Permanent

Natural

Communication

Co-efficient of friction between iron and iron is:

Choose an answer

1.0

0.62

0.9

1.2

The freezing point of Mercury is:

Choose an answer

49 ^oC

-49^oC

39^oC

-39^oC

Centripetal acceleration of a body is given by formula:

Choose an answer

a_c=v/r

a_c=mv²/r

a_c=v/r²

a_c=v2/r

Pressure is quantity.

Choose an answer

Vector

Scalar

Base

Derived

Moon is nearly km away from the Earth:

Choose an answer

3,80,000 km

3800 km

3,80 km

38 km

Everybody in the universe attracts other body with a force which is

Choose an answer

Directly proportional to the product of their masses

Inversely proportional to the product of their masses

Directly proportional to the distance between them

Directly proportional to the square of the distance between them

1 N ___________

Choose an answer

1 kgms^-2

1 kg ms^-1

ms^-2

All

The product of force and momentum arm is called:

Choose an answer

Couple arm

Torque

Rigid body

Axis of rotation

___________ specific heat of water is benefits in sustaining life.

Choose an answer

High

Low

Medium

None

The instrument which is used to display the magnitude of changing electric current is called:

Choose an answer

Evacuated tube

Cathode rays oscilloscope

Television tube

Picture tube

1 Pico Farad is equal to:

Choose an answer

10^-9F

10^-12F

10¹²F

10^-6F

Thye Water waves obey the laws of

Choose an answer

Reflection

Refraction

Diffraction

All of these

If the intensity of faintest audible sound is Io and of another sound is I then sound level will be:

Choose an answer

K log Io/I

Log Io/I 2K

K log Io/I2

K log I/Io

The time period of mass attached with a spring can be calculated by:

Choose an answer

T = 2π√L/g

T = 1/T

T =2π√g/L

T = 2π√m/k

NOT gate is also called:

Choose an answer

Converter

Inverter

Transmitter

Receiver

Which type of capacitor is cylindrical in shape:

Choose an answer

Paper capacitor

Mica capacitor

Variable capacitor

Plates capacitor

The filament of an electric bulb is made of:

Choose an answer

Nickel

Aluminium

Tungsten

Carbon

In series combination of capacitors, each capacitor will have same:

Choose an answer

Voltage

Charge

Capacitance

Charge and voltage

When a heavy nucleus splits into lighter nuclei,the process would.

Choose an answer

Release nuclear energy

absorb nuclear energy

Release Chemical energy

Absorb Chemical Energy

The way of doing business by using web is called:

Choose an answer

Sources of entertainment

Web business

E-commerce

E-mail

When body acquires terminal velocity them its acceleration 'a' becomes.

Choose an answer

a = 0

a = g

a > 0

a < 0

The to and fro motion of a body is called

Choose an answer

Linear motion

Rotational motion

Vibratory motion

None of these

An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at.

Choose an answer

0 K

0 ^oC

100 K

100 ^oC

The periodic variations of sound between maximum and minimum loudness are called.

Choose an answer

Doppler's effect

reflection

Laplace correction

Beats

In matter, the Atoms are in a state of never ending

Choose an answer

Motion

Rest

Change

State of decline

Efficiency of steam locomotive is.

Choose an answer

8%

10%

9%

7%

Which of the following is not directed along the fixed axis of rotation.

Choose an answer

Angular displacement

Angular momentum

Centripetal acceleration

Angular acceleration

When water falls from tap, its cross sectional area decrease due to.

Choose an answer

Decrease of speed

Increase of speed

Air pressure

Gravity increase

First law of thermodynamics can be defined by the equation

Choose an answer

The area between velocity time graph and the time axis is numerically equal to.

Choose an answer

?Speed of object

Distance covered by the object

Average velocity of the object

Acceleration of the object.

When newton ring are seen through the transmitted light, then central spot is.

Choose an answer

Dark

Blue

Bright

Red

By winding the coil around a less magnetic core, self induction.

Choose an answer

Will increase

Will decrease

Remain same

First increase then decrease

Which of the following does not undergo plastic deformation.

Choose an answer

Copper

Wrought iron

Head

Glass

Galvanometer is sensitive when C/BAN is

Choose an answer

zero

Large

small

Negative

When charge particle enter perpendicular to magnetic field, the path followed by it is:

Choose an answer

A helix

A circle

Straight line

Ellipes

If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.

Choose an answer

Half

Two

Four times

One fourth

The solid with definite M.L are called:

Choose an answer

Crystalline

Amorphous

Polymeric

None of above

Ampere second stands for the unit of.

Choose an answer

Charge

emf

energy

Power

Paschen series lies in the

Choose an answer

Far ultraviolet region

Visible region

Ultraviolet region

Inferred region

The net charge on a capacitor magnitude of charge of charge

Choose an answer

Infinity

2 q

Q/2

Zero

Which one is pentavalent impurity

Choose an answer

Boron

Gallium

Antimony

Indium

The vessel containing the tow electrodes and liquid to known as.

Choose an answer

Chemical cell

Volt cell

Volta cell

Volta meter