PRACTICE SET – 02 (English Translation)
1.
The dimensional formula of शक्ति (Power) is: (a) �
(b) �
(c) �
(d) None of these
2.
If 0.5 kg of mass is raised through a height of 2 m, then the work done is: (a) 0.305 J
(b) 0.408 J
(c) 0.456 J
(d) 0.465 J
3.
If an electric current of 1 milliampere is flowing through a conductor, then how many electrons pass through a cross-section per second? (a) � electrons
(b) � electrons
(c) � electrons
(d) None of these
4.
10 g of water at –10°C is converted into steam at 0°C. The amount of heat required will be: (a) 40 calories
(b) 56 calories
(c) 50 calories
(d) 60 calories
5.
The gaseous layer around the Earth exerts pressure due to: (a) Friction
(b) Heat
(c) Gravity
(d) Speed
6.
The reason why rain drops are spherical is: (a) Water viscosity
(b) Surface tension
(c) Earth’s gravity
(d) Vapour pressure
7.
When alum is added to muddy water, its main effect is: (a) Increase in volume of water
(b) Dirt particles settle down
(c) Water starts boiling
(d) Water becomes colder
8.
“G” in physics: (a) Is a scalar quantity
(b) Is a vector quantity
(c) Depends only on mass
(d) Depends only on time
9.
A freely falling body: (a) Loses total energy
(b) Gains total energy
(c) Potential energy decreases, kinetic energy increases
(d) Kinetic energy decreases, potential energy increases
10.
When milk is heated: (a) Nothing happens on the surface
(b) A layer forms on the surface due to evaporation
(c) Milk becomes tasteless
(d) None of these
11.
If the amount of water vapour in air increases, humidity: (a) Increases
(b) Decreases
(c) First increases then decreases
(d) Remains unchanged
12.
Small balloons rise upward because: (a) Their weight is less than the displaced air
(b) They are larger in size
(c) They are made of rubber
(d) They do not exert pressure on air
13.
A laborer lifts a 3 kg load vertically through 50 m in 20 s. His power is: (a) 1.22 W
(b) 2.22 W
(c) 3.2 W
(d) 5.22 W
14.
If the temperature of a healthy human body is 98.4°F, then in Celsius it is: (a) 37.2°C
(b) 36.9°C
(c) 40°C
(d) 40.2°C
15.
At what temperature do Celsius and Fahrenheit scales show the same reading? (a) 50°C
(b) 250°C
(c) –757°C
(d) 574.25°C
16.
The least count of a thermometer is: (a) 100°C
(b) 0°C
(c) –4°C
(d) 4°C
17.
A patient suffering from jaundice has urine of which color? (a) Red
(b) Blue
(c) Green
(d) Yellow
18.
Two wires have the same material and length. One has radius 0.3 mm and the other 0.4 mm. The ratio of their resistances will be: (a) 100 : 4
(b) 10 : 4
(c) 100 : 0.3
(d) 10 : 0.3
19.
A bulb is connected to 220 V supply and draws current �. If connected to 110 V supply, then the current becomes: (a) �
(b) �
(c) �
(d) �
20.
The resistance of an ideal voltmeter is: (a) Zero
(b) Infinite
(c) Greater than zero
(d) Less than infinite
21.
How much heat is produced in 5 minutes by a 210 W heater? (a) 1050 J
(b) 63000 J
(c) 15 kilocalorie
(d) 1050 kilocalorie
22.
A capacitor of 0.6 μF can withstand a maximum potential difference of 330 V. Its maximum charge will be: (a) 660 C
(b) 550 C
(c) 670 C
(d) 560 C
23.
The resistance of a wire is 12 Ω. If it is bent into a ring, then the resistance between opposite points of the ring will be: (a) 12 Ω
(b) 6 Ω
(c) 3 Ω
(d) 24 Ω
24.
If a 100 W, 220 V bulb is used, then its resistance is: �
(a) 442 Ω
(b) 444 Ω
(c) 842 Ω
(d) 484 Ω
25.
A ray of light falls normally on a plane mirror and is reflected back. The angle of reflection is: (a) 20°
(b) �
(c) 30°
(d) 40°
May 12, 2026 591 1
