Pendulum, a pendulum is timed ,first for 20 swings and then for 50 swings ;...

a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/

Friction, why friction is called a necessery evil?

why friction is called a necessery evil?

Experiment of a balance trick, A balance trick Get a smooth metre stick...

A balance trick Get a smooth metre stick and let it rest lightly on your two forefingers. Place your fingers near the ends of the stick and then move them in the direction of t

Why does the electric field inside a dielectric decrease, Normal 0 ...

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What are the image height and orientation, A 5.0-cm-tall object is placed 1...

A 5.0-cm-tall object is placed 16 cm from a convex lens with a focal length of 8.4 cm. What are the image height and orientation?

Vertical circular motion, The string of a pendulum is horizontal. Mass of t...

The string of a pendulum is horizontal. Mass of the bob is m. Now the string is released, what is the tension in the string at lowest position   Ans) If string length is L,    Con

Band theory.., differentiate between direct and indirect band gaps

differentiate between direct and indirect band gaps

Evaluate tha power consumption bulb in series, Two students, A and B, livin...

Two students, A and B, living in neighbouring college rooms, decided to economise by connecting their ceiling lights in series. They agreed that each would install a 100-W bulb

Forces and nature,

What is non-inertial frame of reference, NON-INERTIAL FRAME OF REFERENCE: ...

NON-INERTIAL FRAME OF REFERENCE: A frame which has non-uniform motion but particular acceleration is known as non-inertial frame of reference. Newton's first law of motion i