One kilogram force equals to

(a)

9.8 dyne

(b)

9.8 × 10⁴ N

(c)

98 × 10⁴ dyne

(d)

980 dyne

The resistance of a body to change its state of motion is called

(a)

force

(b)

momentum

(c)

inertia of motion

(d)

inertia of direction

An ice skater pushes harder with his leg muscles, he begins to move faster. This is an example of

(a)

Newton's I law

(b)

Newton's II law

(c)

Newton's III law

(d)

Law of conservation

The force of gravitation between two bodies in the universe does not depend on

(a)

the distance between them

(b)

the product of their masses

(c)

the sum of their masses

(d)

the gravitational constituent

Power of a lens is –4D, then its focal length is

(a)

4m

(b)

–40m

(c)

–0.25 m

(d)

–2.5 m

The splitting up of white light into colours is called

(a)

reflection

(b)

refraction

(c)

scattering

(d)

dispersion

When a person uses a convex lens as a simple magnifying glass, the object must be placed at a distance

(a)

less than one focal length

(b)

more than one focal length

(c)

less than twice focal length

(d)

more than twice the focal length

Objective of telescope is of

(a)

Short focal length & short aperture

(b)

Short focal length & large aperture

(c)

Large focal length & large aperture

(d)

Large focal length & short aperture

A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is

(a)

0.017 ohm

(b)

58.82 ohm

(c)

58.82 kilo ohm

(d)

None of the above

If the resistance in a series circuit doubles, total current will be

(a)

doubles

(b)

halved

(c)

same

(d)

Increases

Which options show the correct direction of current?

(a)

(b)

(c)

(d)

What does it mean when a wave's amplitude increases?

(a)

Its frequency also increases

(b)

It is moving in denser medium

(c)

Its wavelength gets longer

(d)

It carries more energy

Radio ________ is used in the treatment of cancer.

(a)

sodium

(b)

cobalt

(c)

iron

(d)

phosphorous

Order of temperature of fusion reaction is ________kelvin.

(a)

10¹⁷

(b)

10⁷

(c)

10¹⁰

(d)

10³

The number of atoms in 0.1 mole of a triatomic gas is

(a)

6.023 x 10²²

(b)

1.806 x 10²³

(c)

3.6 x 10²³

(d)

1.8 x 10²²

Atomicity of Sulphur is

(a)

1

(b)

2

(c)

4

(d)

8

Electronegativity values are based on ______________

(a)

bond energy

(b)

electron affinity

(c)

ionisation energy

(d)

all the above

Identify the non aqueous solution.

(a)

sodium chloride in water

(b)

glucose in water

(c)

copper sulphate in water

(d)

sulphur in carbon di sulphide

A beaker contains a solution of copper sulphate. precipitation of copper sulphate takes place when small amount of it added to ________ solution.

(a)

Saturated

(b)

Super saturated

(c)

Unsaturated

(d)

Concentrated

Which of the following represents a precipitation reaction?

(a)

A_(s) + B_(s) → C_(s) + D_(s)

(b)

A_(s) + B_(aq) → C_(aq) + D_(l)

(c)

A_(aq) + B_(aq) → C_(s) + D_(aq)

(d)

A_(aq) + B_(s) → C_(aq) + D_(l)

An element 'A' on exposure to moist air turns to form compound 'B' which is reddish brown. Identify 'A' and 'B'.

(a)

'A' is Ag, 'B' is Ag_2s

(b)

'A' is Cu, 'B' is CuO

(c)

'A' is Mg, 'B' is MgO

(d)

'A' is Fe, 'B' is Fe₂O₃

Ionic product of water is expressed

(a)

K_w = [Hp⁺] [OH^-]

(b)

K_w = [H⁺] [OH^-]

(c)

both (a) and (b)

(d)

neither (a) nor (b)

Rectified spirit is an aqueous solution which contains about _______ of ethanol

(a)

95.5 %

(b)

75.5 %

(c)

55.5 %

(d)

45.5 %

According to IUPAC rules, the secondary suffix used to represent carboxylic acids is  _________________.

(a)

al

(b)

ol

(c)

ate

(d)

oic

Kreb’s cycle takes place in

(a)

chloroplast

(b)

mitochondrial matrix

(c)

stomata

(d)

inner mitochondrial membrane

‘Heart of Heart’ is called

(a)

SA node

(b)

AV node

(c)

Purkinje fibres

(d)

Bundle of His

Two chambered heart is seen in__________

(a)

fish

(b)

amphibian

(c)

reptiles

(d)

mammals

Node of Ranvier is found in

(a)

muscles

(b)

axons

(c)

dendrites

(d)

cyton

Cyton is also called cell body or ______

(a)

axon

(b)

perikaryon

(c)

neuroglia

(d)

neuron

Premature shedding is caused by ______

(a)

auxin

(b)

ethylene

(c)

ABA

(d)

gibberellin

A single highly coiled tube where sperms are stored, get concentrated and mature is known as

(a)

Epididymis

(b)

Vasa efferentia

(c)

Vas deferens

(d)

Seminiferous tubules

Paleontologists deal with

(a)

Embryological evidences

(b)

Fossil evidences

(c)

Vestigial organ evidences

(d)

All the above

We can cut the DNA with the help of

(a)

scissors

(b)

restriction endonucleases

(c)

knife

(d)

RNAase

Cancer of the epithelial cells is called

(a)

Leukemia

(b)

Sarcoma

(c)

Carcinoma

(d)

Lipoma