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MCQs

Total Questions : 150 | Page 6 of 15 pages
Question 51. When water is heated form 0°C to 10° C. Its volume
  1.    Increases
  2.    Decreases
  3.    does not change
  4.    first decreases and then increases
 Discuss Question
Answer: Option D. -> first decreases and then increases
:
D
Option:(d)
Question 52. Match List I (Energy Conversion) with List II (Device/Process) and select the correct answer from the codes given below the lists.Match List I (Energy Conversion) With List II (Device/Proces... 
  1.    A -1 B -2 C -3 D -4 E -5
  2.    A -5 B -3 C -2 D -1 E -4
  3.    A -2 B -1  C -3  D -5  E -4
  4.    A -3  B -1  C -2  D -4  E -5
 Discuss Question
Answer: Option B. -> A -5 B -3 C -2 D -1 E -4
:
B
Option:(b)
Question 53. Match List I with List II and select the correct answer from the codes given below the lists:
Match List I With List II And Select The Correct Answer From... 
Codes:
  1.    A-1,B-4,C-3,D-2
  2.    A-4,B-1,C-2,D-3
  3.    A-1,B-2,C-4,D-3
  4.    A-4,B-2,C-3,D-1
 Discuss Question
Answer: Option B. -> A-4,B-1,C-2,D-3
:
B
Option:(b)
Question 54. Match List I with List II and select the correct answer from the codes given below the lists:
Match List I With List II And Select The Correct Answer From... 
Codes:
  1.    A-4,B-2,C-3,D-1
  2.    A-3,B-1,C-2,D-4
  3.    A-2,B-4,C-1,D-3
  4.    A-1,B-3,C-4,D-2
 Discuss Question
Answer: Option C. -> A-2,B-4,C-1,D-3
:
C
Option:(c)
Question 55. Match List I (Types of Waves) with List II (Their Applications) and select the correct answer from the codes given below the lists:
Match List I (Types Of Waves) With List II (Their Applicatio... 
Codes:
  1.    A-3,B-1,C-4,D-2
  2.    A-1,B-3,C-4,D-2
  3.    A-3,B-1,C-2,D-4
  4.    A-1,B-3,C-2,D-4
 Discuss Question
Answer: Option C. -> A-3,B-1,C-2,D-4
:
C
Option:(c)
Question 56. Match List I with List II and select the correct answer from the codes given below the lists.
Match List I With List II And Select The Correct Answer From...   
Codes:
  1.    A-2,B-4,C-1,D-3
  2.    A-3,B-4,C-2,D-1
  3.    A-3,B-1,C-2,D-4
  4.    A-4,B-2,C-3,D-1
 Discuss Question
Answer: Option A. -> A-2,B-4,C-1,D-3
:
A
Option:(a)
Question 57. Assertion (A): A stick is dipped in water in a slanting position. If observed sideways, the stick appears short and bent at the surface of water.
Reason (R): A light coming from the stick undergoes scattering from water molecules giving the stick a short and bent appearance.
Codes
  1.    Both A and R are true and R is the correct explanation of A
  2.    Both A and R are true but R is not a correct explanation of A
  3.    A is true but R is false
  4.    A is false but R is true
 Discuss Question
Answer: Option C. -> A is true but R is false
:
C
Option:(c)
Question 58. A solid cube just gets completely immersed in water when a 0.2 kg mass is placed on it. If the mass is removed, the cube is 2 cm above the water level. What is the length of each side of the cube?
  1.    12 cm
  2.    10 cm
  3.    8 cm
  4.    6 cm
 Discuss Question
Answer: Option B. -> 10 cm
:
B
Option:(b)
Question 59. Which one of the following reflects back more sunlight as compared to other three?
  1.    Sand desert
  2.    Paddy crop land
  3.    Land covered with fresh snow
  4.    Prairie land
 Discuss Question
Answer: Option C. -> Land covered with fresh snow
:
C
Option:(C)
Question 60. A hollow sphere of radius R, a hollow cube of side R and a thin circular plate of radius R, made up of the same material, are all heated to 20° C above room temperature. When left to cool in the room, which of them will reach the room temperature first?
  1.    Circular plate
  2.    Cube
  3.    Sphere
  4.    All of them will reach the room temperature at the same time
 Discuss Question
Answer: Option C. -> Sphere
:
C
Option:(c)

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