EASY
Earn 100

Leaves of lotus and water lily are not easily wet because the leaves-
(a)
have surface uneven in micro-scale and water cannot come into contact with the depressed areas due to high surface tension
(b)
contain an oily substance
(c)
contain a greasy substance
(d)
have surface too smooth to attract water

50% studentsanswered this correctly
Important Questions on Physics
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The shape of the path of free electron in a metal is _____:

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What will be the direction of the magnetic field at the very bottom point of a horizontal power line, where the current flows from east to west when viewed from the west end?

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Which of the following is a landlocked country?

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The flow of _____ is anti–clockwise in the given circuit:

