The velocity time graph is parallel to X-axis it shows _______.

(a)

uniform velocity of an object

(b)

non-uniform velocity

(c)

stationary position of an object

(d)

acceleration motion of an object

When a beam of white light passes through a prism it gets

(a)

Reflected

(b)

deviated and dispersed

(c)

only deviated

(d)

refracted

The radius of curvature of the spherical mirror is equal to __________.

(a)

focal length

(b)

twice the focal length

(c)

thrice the focal length

(d)

half of the focal length

______ is essential to perform separation by solvent extraction method.

(a)

Separating funnel

(b)

centrifuge machine

(c)

filter paper

(d)

sieve

A mixture can be separated into its constituents by_____

(a)

Physical

(b)

Chemical

(c)

Electrical

(d)

Magnetic

The outermost shell of an atom is called its________ shell.

(a)

inner

(b)

outer

(c)

valence

(d)

sub shell

The tropic movement that helps the climbing vines to find a suitable support is ________. 

(a)

phototropism

(b)

geotropism

(c)

thigmotropism

(d)

chemotropism

Find the group having only marine members

(a)

Mollusca

(b)

Porifera

(c)

Coelenterata

(d)

Echinodermata

Food and Adulteration Act was enforced by Government of India in the year __________.

(a)

1964

(b)

1954

(c)

1950

(d)

1963

Two cylinders of equal height and radius are made of copper and aluminium. Which of them conducts heat faster?

(a)

Copper rod

(b)

Aluminium rod

(c)

Both of them

(d)

None of them

An electric generator converts

(a)

electrical energy into mechanical energy

(b)

mechanical energy into heat energy

(c)

electrical energy into electrical energy

(d)

mechanical energy into electrical energy

The element that would form anion by gaining electrons in a chemical reaction is ___________.

(a)

Potassium

(b)

Calcium

(c)

Fluorine

(d)

Iron

pH value of human blood is_________

(a)

7.0

(b)

7.4

(c)

7.6

(d)

7.6

Brush bordered epithelium is found in

(a)

stomach

(b)

small intestine

(c)

fallopian tube

(d)

trachea

Excretion means______

(a)

taking in oxygen from the air and giving out carbon dioxide

(b)

disposal of harmful germs and worms from our body

(c)

distribution of digested food to the body tissues through blood

(d)

removal of nitrogenous wastes generated in the body

The size of an air bubble rising up in water

(a)

decreases

(b)

increases

(c)

remains same

(d)

may increase or decrease

The carbon atoms in fullerene are arranged in mixed

(a)

Tetragon and Pentagon

(b)

Pentagon and Hexagon

(c)

Hexagon and Heptagon

(d)

Heptagon and Octagon

Chlorinated hydrocarbons are used as

(a)

fertilizers

(b)

pesticides

(c)

food colourants

(d)

preservatives

Which one of the following is not an exotic breed of cow?

(a)

Jersey

(b)

Holstein-Friesan

(c)

Sahiwal

(d)

Brown Swiss

One of the means of indirect transmission of a disease is

(a)

sneezing

(b)

coughing

(c)

vectors

(d)

droplet infection