The spring balance works on the principle of __________
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Rate of work done is _______.
A person holding a pen in his left hand sees his reflection in the mirror holding the pen in his right hand. This is due to which of the following phenomena?
Weight (W) of a body can be given by the formula
The longest day of the year in the Northern Hemisphere occur on _____.
Asexual reproduction takes place in
What is the name of portal launched by RBI recently to check illegal money collection?
The surface area of a sphere is 1386 cm2. Find its diameter (in cm)