1. Arrange the following colours in the order of increasing angle of deviation Green, Orange, Indigo, Yellow.
A. Yellow, Green, Orange, Indigo
B. Orange, Yellow, Green, Indigo
C. Indigo, Green, Yellow, Orange
D. Indigo, Orange, Green, Yellow
2. 1µC of charge is equivalent to the charge contained in nearly how many electrons
A. 8×10^11
B. 6×10^12
C. 9×10^10
D. 1.6×10^-19
3. The eye perceives an object as moving when still images are flashed on the eye at a rate greater than
A. 16 per second
B. 8 per second
C. 10 per second
D. 4 per second
4. Which mirror is used to concentrate sunlight to produce heat in solar furnaces?
A. Concave Mirror
B. Convex Mirror
C. Plane Mirror
D. Both (A) and (C)
5. A proton enters a magnetic field at a right angle to it as shown in the figure. The direction of the force on the proton is
https://files.letxy.com/img/pc/CMSTCCS/2022/5.png
A. Downward
B. Into the page
C. Outside the page
D. Upward
6. Name the component used to regulate current without changing the voltage source
A. Rheostat
B. Battery
C. Voltmeter
D. Both (A) and (B)
7. Which reaction is the source of energy in the sun and other stars?
A. Nuclear fusion reaction
B. Nuclear fission reaction
C. Combustion reaction
D. All of above
8. In India, the AC changes its direction after how many seconds
A. 100s
B. (1/50)s
C. 50s
D. (1/100)s
9. Which part of the graph represents retardation?
https://files.letxy.com/img/pc/CMSTCCS/2022/9.png
A. AB and EF
B. BC and EF
C. CD and BC
D. DE and AB
10. An object starts from rest with a constant acceleration of ‘a’ m/s² covers a distance of ‘x’ meters in the first 10 seconds. Find the distance travelled by the object in the 5th second
A. (9x/100) m
B. (x/4) m
C. (4x/25) m
D. None of the above.
11. Which of them is used as Rocket fuel?
A. LPG
B. CNG
C. Petrol
D. Hydrogen
12. The perception of depth stimulated by objects that possess horizontal disparity with one object usually located in front of or behind the fixation point is called
A. Presbyopia
B. Myopia
C. Hypermetropia
D. Stereopsis
13. The magnitude of the buoyant force depends on which property of the fluid
A. Density of the object
B. Density of the fluid
C. Mass of the object
D. Total amount of the fluid
14. Lactometers, which are used to determine the purity of a sample of milk are based on which principle
A. Archimede’s principle
B. Law of conservation of energy
C. Law of Inertia
D. Law of conservation of mass.
15. Match the following quantities to their units
a) Force i) Second^-1
b) Momentum ii) KWh
c) Frequency iii) Kgm/s²
d) Energy iv) Kgm/s
e) Power
A. a—(ii), b—(iv), c—(iii), e—(i)
B. a—(iii), b—(iv), c—(i), e—(ii)
C. a—(iV), b—(i), c—(iii), d—(ii)
D. a—(iii), b—(iv), c—(i), d—(ii)
16. The area enclosed under the velocity time graph gives which physical quantity.
A. Acceleration
B. Momentum
C. Force
D. Displacement
17. In which of the conditions the work done will be zero?
a) Force is zero
b) Displacement is zero
c) Angle between force and
displacement is 90°
d) Angle between force and
displacement is 0°
A. a and b
B. a, b and c
C. a, b and d
D. c and d
18. An object of mass 500g is moving with a uniform velocity of 50 cm/s. What is the kinetic energy possessed by the object
A. 6.25×10² J
B. 6.25×10^5 J
C. 6.25×10^-2 J
D. 6.25×10³ J
19. Identify the wrong statement
A. The SI unit of ‘G’ is Nm²/kg².
B. The accepted value of ‘G’ is 6.673×10^-11.
C. The value of ‘g’ becomes greater at the poles than at the equator.
D. The Sl unit of ‘g’ is kgm/s.
20. Which part of the ear convent pressure Variations into electrical
signals
A. Hammer
B. Cochlea
C. Anvil
D. Stirrup
21. Find the value of distance and displacement of the object when it moves from A to B in a circular path
as shown in the figure.
https://files.letxy.com/img/pc/CMSTCCS/2022/21.png
A. Distance=3.14 m, Displacement=1.41 m
B. Distance=1.57 m, Displacement=1.41 m
C. Distance=6.28 m, Displacement=2.42 m
D. Distance=1.57 m, Displacement=2.42 m
22. A person with myopia uses a concave lens of focal length 20 cm, the power of the lens used is
A. +0.05 D
B. +5 D
C. -5D
D. -0.05 D
23. The equivalent resistance for the following combination of resistors between A and B is
https://files.letxy.com/img/pc/CMSTCCS/2022/23.png
A. 3Ω
B. 6Ω
C. 9Ω
D. 2Ω
24. An object of weight 50N is dropped from a height of 50m. Find the kinetic energy when it hits the ground.
A. 2500 J
B. 250 J
C. 25000 J
D. 25 J
25. Identify the correct statements
a) The near point for the human eye is 25cm.
b) The twinkling of stars is due to
atmospheric refraction.
c) Blue colour of the sky is due to the scattering of light.
A. a and b
B. b and c
C. a and c
D. a, b and c
Answer Key
- C
- B
- A
- A
- B
- A
- A
- D
- B
- A
- D
- D
- B
- A
- D
- D
- B
- C
- D
- B
- B
- C
- A
- A
- D