_________is the unit of distance used to measure astronomical objects outside the solar system.

(a)

Parsec

(b)

km

(c)

cm

(d)

litre

The area under velocity – time graph represents the

(a)

velocity of the moving object

(b)

displacement covered by the moving object

(c)

speed of the moving object

(d)

acceleration of the moving object

The field of view is maximum for ________ 

(a)

plane mirror

(b)

concave mirror

(c)

convex mirror

A virtual and equal sized image is formed by ___________________mirrors.

(a)

convex

(b)

plane

(c)

convex

(d)

spherical

Change in the number of neutrons in an atom changes it to

(a)

an ion

(b)

an isotope

(c)

an isobar

(d)

another element

James Chadwick observed when was exposed to a particle, particles with about the same mass as protons were emitted.

(a)

Boron

(b)

Carbon

(c)

Helium

(d)

Beryllium

Identify the false statement

(a)

Photosynthesis takes place in mitochondria

(b)

Photo means "light"

(c)

The end product of photo synthesis is glucose

(d)

Chlorophyll is necessary for photosynthesis.

Crop, gizzard and air sacs are seen in

(a)

Fish

(b)

Frog

(c)

Bird

(d)

Bat

The blood vascular system of Arthropoda is_______.

(a)

Open type

(b)

Closed type

(c)

Partially open type

(d)

Partially closed type

Resistance of a wire depends on

(a)

temperature

(b)

geometry

(c)

nature of material

(d)

all the above

The increasing order of the energy of subshells is

(a)

s>p>d>f

(b)

s

(c)

p

(d)

p

Elements with stable electronic configurations have eight electrons in their valence shell. They are__________

(a)

Halogens

(b)

Metals

(c)

Noble gases

(d)

non metals

The hydrated salt of copper sulphate has______colour

(a)

Red

(b)

White

(c)

Blue

(d)

Pink

Which of the following is not found in a neuron?

(a)

Sarcolemma

(b)

Dendrite

(c)

Neurolemma

(d)

Axon

Stomach of human beings mainly digests

(a)

carbohydrates

(b)

proteins

(c)

fat

(d)

sucrose

If the speed of a wave is 340 m s^-1 and its frequency is 1700 Hz, then wavelength λ for this wave in cm will be

(a)

34

(b)

20

(c)

15

(d)

0.2

Who proposed the heliocentric model of the universe?

(a)

Tycho Brahe

(b)

Nicolaus Copernicus

(c)

Ptolemy

(d)

Archimedes

One Nanometre is

(a)

10^-7 metre

(b)

10^-8 metre

(c)

10^-6 metre

(d)

10^-9 metre

Binomial name of Nilavembu is

(a)

Leucas aspera

(b)

Andrographis paniculata

(c)

Crotolaria juncea

(d)

Cassia fistula

Find out the part that is not found in CPU?

(a)

Mother Board

(b)

SMPS

(c)

RAM

(d)

Mouse