Choose the correct one

(a)

mm < cm < m < km

(b)

mm > cm > m > km

(c)

km < m < cm < mm

(d)

mm > m > cm > km

Distance between Chennai and Kanyakumari can be found in

(a)

Kilometres

(b)

Metres

(c)

Centimetres

(d)

Millimetres

Slope of the velocity - time graph gives

(a)

speed

(b)

displacement

(c)

distance

(d)

acceleration

Unit of acceleration is

(a)

ms^-1

(b)

ms^-2

(c)

ms

(d)

ms²

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

Among the following______is a mixture

(a)

Common Salt

(b)

Juice

(c)

Carbon dioxide

(d)

Pure Silver

The correct electronic configuration of potassium is

(a)

2,8,9

(b)

2,8,1

(c)

2,8,8,1

(d)

2,8,8,3

Transpiration is best defined as _________ 

(a)

loss of water by the plant

(b)

evaporation of water from the aerial surfaces from the plant

(c)

loss of water in the form of water vapour from the underground parts of the plant body

(d)

release of water from the plant into the atmosphere

Transpiration takes place through _____________.

(a)

fruit

(b)

seed

(c)

flower

(d)

stomata

Which is not an insect?

(a)

House fly

(b)

Bedbug

(c)

Mosquito

(d)

Spider

Crop, gizzard and air sacs are seen in

(a)

Fish

(b)

Frog

(c)

Bird

(d)

Bat

Find the correct sequence

(a)

Frog \(\longrightarrow\) Fish \(\longrightarrow\) Snake \(\longrightarrow\) Dove \(\longrightarrow\) Lion

(b)

Fish \(\longrightarrow\) Snake \(\longrightarrow\) Frog \(\longrightarrow\) Lion \(\longrightarrow\) Dove

(c)

Fish \(\longrightarrow\) Snake \(\longrightarrow\) Frog \(\longrightarrow\) Lion \(\longrightarrow\) Crow

(d)

Fish \(\longrightarrow\) Frog \(\longrightarrow\) Snake \(\longrightarrow\) Dove \(\longrightarrow\) Lion

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

_________ belongs to the generation IV of the computer

(a)

Microprocessor

(b)

Artificial intelligence

(c)

Transistor

(d)

Vaccum Tubes

Thickness of a cricket ball is measured by _______

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Vernier Caliper

The slope of the distance – time graph at any point gives __________.

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speed

Area under velocity ‒ time graph shows ____________

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magnitude of the displacement

The graph of uniform motion is _____

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Straight line

The angle of deviation of light ray in a prism depends on the angle of _________

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incidence

A _____mixture has no distinguishable boundary between its components

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homogeneous

The particles start moving faster as their kinetic energy_____

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increases

Total Number of electrons that can be accommodated in an orbit is given by_________.

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   2n²

In Gay Lussac's law all the volumes are measured under similar conditions of ___________and__________.

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Temperature, pressure

Photosynthesis : ____________ Transpiration : Stomata

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The plant respond to gravity is_________________.

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geotropism

Myotomes are seen in ______________

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Fishes

Flat worms are ______________

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Acoelomates

Vitamin D is called as _______________ vitamin as it can be synthesised by the body from the rays of the sunlight.

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sunshine vitamin

Glucose is a _______

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monosaccharide

Light is one of the slowest travelling energy with a speed 3 \(\times\)10^-8 ms^-1

(a) True

(b) False

Water has a definite boiling point and freezing point.

(a) True

(b) False

Milk is an example of an emulsion of fat and curd

(a) True

(b) False

Smaller the size of the orbit, lower is the energy of the orbit

(a) True

(b) False

Scientific term used to represent the bending of roots towards water is called geotropism.

(a) True

(b) False

Nephridia are the respiratory organ of Annelida

(a) True

(b) False

Fishes have two chambered heart.

(a) True

(b) False

ISI mark is mandatory to certify agricultural products

(a) True

(b) False

Time

(1)

 Anaemia

Mass

(2)

Positive phototropism.

Uniform acceleration

(3)

II generation

Cream

(4)

-1.6 x 10^-19C

At C

(5)

outer wall

Boiling

(6)

Matter

Charge of electron

(7)

second

Shoots growing towards the light

(8)

At C - Same size, Real, inverted

Iron

(9)

Transistor

(10)

Constant temperature