Question # 1

What flower is known as natural thermometer?

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Rose

Barasicca

Crocus

Tulip

A body of mass 5 kg i moving with a velocity of 10 ms^-1. Find the force required to stop it in 2s.

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5 N

25 N

20 N

30 N

Convection of heat is a process of heat transfer due to;

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Random motion of molecules

Downward motion of molecules

Upward motion of molecules

Free motion of molecules

The centre of gravity of uniform triangle is:

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Point of intersection of medians

On its vertex

On middle point of its axis

Point of intersection of diagonal

The unit of Heat is:

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Kelvin

Joule

Jkg^-1 K^-1

kg

1 MJ=

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10³ J

10⁶J

10⁷J

10^-3J

Those objects which do not conduct electricity are called.

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Insulator

Semi conductor

Nil

Conduct

Friction is due to

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Roughness

Shape

Smoothness

None

A crate is moved by pulling the rope attached to it. it moves 10 m on straight horizontal read by a force of 100 N. How much work will be done when the rope is making an angle of 30° with the road?

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5 Joules

86 Joules

707 Joules

866 Joules

When two bodies are in motion then the velocity of one body relative to the other is called.

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Relative velocity

Uniform velocity

Variable velocity

Average velocity

Mercury is denser than water by time:

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13,6

10

15

20

The least count of screw gauge is.

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.01 mm

0.1 mm

.001 mm

.01 m

Tan 𝜽 is equal to:

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Perpendicular/Hypotenuse

Base / Perpendicular

Base/Hyp

Perpendicular/Base

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