**Quantum mechanics**, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior

## Wormhole

**Deepa** asked:

“What is a worm hole?”

Ans:

A **wormhole** is a hypothetical topological feature of spacetime that would be, fundamentally, a "shortcut" through spacetime.

A wormhole is, in theory,

## Indian Journal of Pure & Applied Physics (IJPAP) Browse the Latest articles published

##### List of Articles:

EPR study of free radicals in amino acid derivatives gamma-irradiated at 300 K *Aydin, Murat* *611-614*

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## Question from Wave Optics

**Rajat** Asked:

What is the difference between

interferenceanddiffraction?

**Ans**:

Interference is caused by the superposition of wave fronts from two coherent sources; But diffraction is caused by the superposition

## Question from Beats (Waves)

Sanjeet asked:

"the displacement of a particle in periodic motion is given by "y=(cos2t-2cost+2sin^2t+1). What is the no. of beats that can be heard in 10 seconds?"

## Question from Rotational Dynamics

**Dyana** Asked:

A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The small wheel has a radius of 3.5 cm and accelerates at the