Question
An object at rest will remain at rest and an object in
motion will remain in motion until and unless it is acted upon by an external force. This is Newton's –Solution
Newton's first law of motion - sometimes referred to as the law of inertia-states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia.
The SI unit of mechanical energy is
Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?
The product of the equivalent weight and valency of an element equals its ______.
What is the name of the acid in an ant's sting?
The conversion of hard water into soft water by boiling or adding calcium hydroxide is called:
Which polymer is formed by the copolymerization of phenol and formaldehyde?
The process of converting a solid directly into its vapor is called:
Chlorophyll-a is present in all photosynthetic organisms except
What is dehydration?
Sound cannot pass through –
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