X - SCIENCE | CHOOSE | ONLINE ONE MARK TEST

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X - SCIENCE | CHOOSE | ONLINE ONE MARK TEST - 03

SHUFFLED ONE MARK (P 1-4, C 7-9,B 12-18)

2.A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens
will produce ____________
*

1 point

a. a convergent beam of light

b. a divergent beam of light

c. a parallel beam of light

d. a coloured beam of light

9. Casparian strips are present in the __________ of the root.
*

1 point

a) cortex

b) pith

c) pericycle

d) endodermis

6.The basis of modern periodic law is __________.
*

1 point

a) atomic number

b) atomic mass

c) isotopic mass

d) number of neutrons

3.If a substance is heated or cooled, the change in mass of that substance is _______
*

1 point

a) positive

b) negative

c) zero

d) none of the above

1.Impulse is equal to __________ *

1 point

a. rate of change of momentum

b. rate of force and time

c. change of momentum

d. rate of change of mass

7.A solution is a __________ mixture.
*

1 point

a) homogeneous

b) heterogeneous

c) homogeneous and heterogeneous

d) non homogeneous

10.Mammals are ______________ animals.
*

1 point

a) Cold blooded

b) Warm blooded

c) Poikilothermic

d) All the above

NAME : *

5.Mass of 1 mole of Nitrogen atom is _________
*

1 point

a) 28 amu

b) 14 amu

c) 28 g

d) 14 g

4.Which of the following is correct?
*

1 point

a) Rate of change of charge is electrical power.

b) Rate of change of charge is current.

c) Rate of change of energy is current.

d) Rate of change of current is charge.

8.During transpiration there is loss of _________
*

1 point

a) Carbon di oxide

b) Oxygen

c) Water

d) None of the above

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