To measure the diameter of a thin wire_________is used.

(a)

Screw gauge

(b)

Water gauge

(c)

Meter gauge

(d)

Wind gauge

When a body starts from rest, the acceleration of the body after 2 second in _____________ of its displacement.

(a)

Half

(b)

Twice

(c)

Four times

(d)

One fourth

The second law of refraction is stated by ____________________

(a)

C.V. Raman

(b)

Gallileo

(c)

Newton

(d)

Snell

Filtration method is effective in separating _______ mixture

(a)

Solid-solid

(b)

solid-liquid

(c)

liquid-liquid

(d)

liquid-gas

Our bodies contain radioisotopes such as ___________which continuously emit radiation.

(a)

Potassium 40

(b)

Iodine 131

(c)

Cobalt 60

(d)

Carbon 14

Transpiration takes place through _____________.

(a)

fruit

(b)

seed

(c)

flower

(d)

stomata

Among the following which one is most biodiverse terrestrial place?

(a)

Africa

(b)

America

(c)

Argentina

(d)

Amazon.

Find the correct statement about frog.

(a)

Heart is three chambered

(b)

Two chambered heart

(c)

'S' shaped

(d)

Heart is four chambered

The physician who discovered that scurvy can be cured by ingestion of citrus fruits is  ______________

(a)

James Lind

(b)

Louis Pasteur

(c)

Charles Darwin

(d)

Isaac Newton

Lipases are enzymes which breaks down __________.

(a)

Proteins

(b)

Fats

(c)

Carbohydrates

(d)

Food

If in the circuit, power dissipation is 150 W, then R - is___________

(a)

2\(\Omega \)

(b)

6\(\Omega \)

(c)

5\(\Omega \)

(d)

4\(\Omega \)

If Dobereiner is related with 'law of triads', then Newlands is related with __________.

(a)

Modern periodic law

(b)

Hund's rule

(c)

Law of octaves

(d)

Pauli's Exclusion principle

Which of the following are the is a weak bases?

(a)

NH₄OH & NaOH

(b)

Ca(OH)₂& KOH

(c)

NH₄OH & Ca(OH)₂

(d)

NaOH & KOH

Tendon connects

(a)

cartilage with muscles

(b)

bone with muscles

(c)

ligament with muscles

(d)

bone with bone

Heavy trucks are fitted with six to eight wheels, As area increases, Pressure will ___________.

(a)

decrease

(b)

increase

(c)

remains the same

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

Hydrocarbons on burning in the air give CO₂ and _____________.

(a)

Water and heat

(b)

CO and Heat

(c)

Water and CO

(d)

Water and Sulphur dioxide

Identify the incorrect statement with respect to adaptations of earthworm.

(a)

Earthworm has a stream lined body with no antennae or fins.

(b)

Each segment of earthworm has setae.

(c)

Many earthworms become inactive in a process called hibernation, during winter season.

(d)

Earthworms remain in its burrow during day time, to avoid sunlight.

The quality and taste of honey depends upon the flower visited by _____________.

(a)

bees

(b)

flies

(c)

farmer

(d)

queen bee

Which of the following micro organism helps in fermentation?

(a)

Yeast

(b)

Mould

(c)

Mushroom

(d)

Rhizopus