Luminous intensity is the intensity of ________

(a)

Laser light

(b)

UV light

(c)

visible light

(d)

IR light

Rain drops are spherical in nature because of _________

(a)

Frictional force

(b)

Buoyant force

(c)

Surface tension

(d)

Viscous force

The centre of a sphere of which the reflecting surface of a spherical mirror is a part is called

(a)

pole

(b)

centre of curvature

(c)

cradius of curvature

(d)

aperture

When the angle of inclination decreases the number of images formed _________

(a)

increase

(b)

decreases

(c)

remain same

(d)

none of the above

Which one of metal possess low tensile strength?

(a)

Silver

(b)

Copper

(c)

Zinc

(d)

Aluminium

Brine is a concentrated solution of ______.

(a)

Sodium sulphate

(b)

sodium chloride

(c)

calcium chloride

(d)

sodium bromide

_______ shows both living and nonliving characteristics.

(a)

Protozoa

(b)

virus

(c)

bacteria

(d)

Fungi

Binominal Nomenclature was first introduced in the year of

(a)

1970

(b)

1975

(c)

1978

(d)

1623

The process of air passing in and out the lungs is called ___________.

(a)

Inhalation

(b)

Exhalation

(c)

Breathing

(d)

None of these

If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

(a)

Solid

(b)

Liquid

(c)

Gas

(d)

All of above

Fuse is

(a)

a switch

(b)

a wire with low resistance

(c)

a wire with high resistance

(d)

a protective device for breaking an electric circuit

In water, hydrogen and oxygen are combined in the ratio of _______by mass.

(a)

1:8

(b)

8:1

(c)

2:3

(d)

1:3

External ear (pinna )is supported by

(a)

bone

(b)

cartilage

(c)

tendon

(d)

capsule

Androgen production is regulated by ___________

(a)

GH hormone

(b)

LH hormone

(c)

TSH hormone

(d)

ACTH hormone

In Tux Math, space cadet option is used for_________.

(a)

simple addition

(b)

division

(c)

drawing

(d)

multiplication

The shape of the Earth’s magnetic field resembles that of an imaginary __________.

(a)

U-shaped magnet

(b)

straight conductor carrying current

(c)

solenoid coil

(d)

bar magnet

Which of the following is the working principle of Rockets?

(a)

Newton’s first law

(b)

Newton’s second law

(c)

Newton’s third law

(d)

All the above

Aqueous solutions of _________ conduct electricity.

(a)

acid

(b)

base

(c)

salt

(d)

All of these

__________ is the coal of superior quality.

(a)

Peat

(b)

Lignite

(c)

Bituminous

(d)

Anthracite

Deforestation means ______

(a)

cleaning of forest

(b)

to grow plants

(c)

to look after plants

(d)

None of these.