Practice Question and Answer

Q:

What makes a virtual image of a real object?

1 0

  • 1
    convex mirror
    Correct
    Wrong
  • 2
    plane mirror
    Correct
    Wrong
  • 3
    concave mirror
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
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Answer : 2. "plane mirror"

Q:

Water flows into a tank which is 200 m long and 150 m wide, through a pipe of cross-section (0.3m x 0.2m) at 20 km/h. In what time will the water level be 8 m?

1 0

  • 1
    450
    Correct
    Wrong
  • 2
    500
    Correct
    Wrong
  • 3
    200
    Correct
    Wrong
  • 4
    250
    Correct
    Wrong
  • 5
    350
    Correct
    Wrong
  • Show Answer
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Answer : 3. "200 "

Q:

Which is the most correct translation of-
 He had a narrow' escape. 

1 0

  • 1
    वह बच गया था।
    Correct
    Wrong
  • 2
    वह इतना सा बच गया।
    Correct
    Wrong
  • 3
    वह बाल-बाल बच गया।
    Correct
    Wrong
  • 4
    वह थोड़े से कोने से बच गया।
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 3. "वह बाल-बाल बच गया। "

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