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a) It is not good for health while sleep...

a) It is not good for health while sleeping under the tree during night.
b) There is a chance of falling of branches.

A

both a and b are true b explains a

B

both a and b are true b doesn't explain a

C

a is true, b is false

D

a is false b is true

Text Solution

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Knowledge Check

  • A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remain constant during the fall ?

    A
    Kinetic energy
    B
    Potential energy
    C
    Total mechanical energy
    D
    Total linear momentum

  • A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remain constant during the fall?

    A
    Kinetic energy
    B
    Potential energy
    C
    Total mechanical energy
    D
    Total linear momentum

  • An elastic metal rod will change its length when it a) falls vertically under its weight b) is pulled along its length by a force acting at one end c) rotates about an axis at one end d) slides on a rough surface

    A
    only a, b are true
    B
    only b, c are true
    C
    only a, d are true
    D
    All are true

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