Opening a door is an example of _______

(a)

a non contact force

(b)

contact force

(c)

balanced

(d)

unbalanced

Newton's law of gravitation applies to

(a)

small bodies only

(b)

plants only

(c)

all bodies irrespective of their size

(d)

for solar system

Rainbow formation is due to _____ water droplets.

(a)

Ionisation

(b)

absorption of sunlight

(c)

reflection and refraction of sunlight

(d)

reflection of sunlight

The diameter of eyeball is

(a)

2.3 cm

(b)

23 cm

(c)

2.3 mm

(d)

23 mm

Increase in area due to heating is called

(a)

Linear expansion

(b)

Superficial expansion

(c)

Cubical expansion

(d)

real expansion

Which of the following laboratory apparatus is used during the verification of Ohm's law?

(a)

Voltmeter

(b)

Ammeter

(c)

Rheostat

(d)

All the above

A 110 W, 220 V bulb draws a current.

(a)

2 A

(b)

440 A

(c)

0.5 A

(d)

5.5 A

The pitch of sound depends on

(a)

frequency

(b)

amplitude

(c)

both

(d)

none

Nucleons are made of ________.

(a)

atoms

(b)

electrons and protons

(c)

electrons and neutrons

(d)

protons and neutrons

An atom of an element has 13 electrons and mass number 27. The nucleus of this atom contains ____________ neutrons.

(a)

26

(b)

13

(c)

14

(d)

27

The first period of the modern periodic table has ________ elements.

(a)

1

(b)

2

(c)

3

(d)

8

Non-aqueous solvent is ____________

(a)

benzene

(b)

ether

(c)

CS₂

(d)

All the above

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

(a)

al

(b)

ol

(c)

ate

(d)

oic

The life span of platelets is_________

(a)

3 weeks

(b)

1 month

(c)

2-3 days

(d)

40 days

The cytoplasm has granular body called _______

(a)

nissl's granules

(b)

nerve fibres

(c)

glial cells

(d)

nerve cells

_____ is a natural Auxin.

(a)

Phenyl Acetic Acid

(b)

Indole 3 Butyric Acid

(c)

α - Naphthalene Acetic Acid

(d)

Indole - 3- Propionic Acid

An outgrow arises on the parent body during________

(a)

Fragmentation

(b)

Fission

(c)

Budding

(d)

Regeneration

In human, each cell normally consists _________of chromosomes.

(a)

23 pairs

(b)

22 pairs

(c)

20 pairs

(d)

12 pairs

World AIDS Day is observed on ______________

(a)

1^st December

(b)

15^th December

(c)

24^th November

(d)

1^st May