Practice Question and Answer

Q:

The minimum value of 16 tan2 θ + 25cot2 θ is

2642 0

  • 1
    5
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 4. "40"

Q:

PQRS is a parallelogram, Angle SPQ=60 Degree, QR=40 cm and PQ=10 cm, then find the area of the parallelogram.

2642 0

  • 1
    100√3 sq.cm
    Correct
    Wrong
  • 2
    200√3 sq.cm
    Correct
    Wrong
  • 3
    100 sq.cm
    Correct
    Wrong
  • 4
    500 sq.cm
    Correct
    Wrong
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Answer : 2. "200√3 sq.cm"

Q: Lamarck's theory of inheritance of acquired characters was challenged by 2641 0

  • 1
    August Weismann
    Correct
    Wrong
  • 2
    Hugo de Vries
    Correct
    Wrong
  • 3
    Herbert Spencer
    Correct
    Wrong
  • 4
    Carl Linnaeus
    Correct
    Wrong
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Answer : 3. "Herbert Spencer"
Explanation :

Answer: C) Herbert Spencer Explanation: August Weismann cut off the tails of mice for 21 successive generations and still they produced generation after generation of only tailed young ones. So he concluded that acquired characters are not inherited.

Q:

In the following which book based on Astrology?

2641 0

  • 1
    Brahma Siddhanta
    Correct
    Wrong
  • 2
    Romak Siddhanta
    Correct
    Wrong
  • 3
    Aryabhattiya
    Correct
    Wrong
  • 4
    Hora Shastra
    Correct
    Wrong
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Answer : 4. "Hora Shastra"

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Answer : 4. "d"

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