Quantum Mechanics Basics

What type of nature do electromagnetic waves have?

• Wave nature

• Particle nature

• Dual nature

• Photon nature

It is not possible to know simultaneously and with exactness both..........and...........of particle.

• Position,acceleratiom

• Position,Momentum

• mass,motion

• velocity,charge

What is matter wave?​

Which of the following is the De-Broglie wavelength in the form of kinetic energy?

Which method of producing ultrasonic waves involves the use of a transistor circuit?

• Piezoelectric method

• Magnetostriction method

• Both

• None of these

What is one of the basic requirements for an acoustically good hall?

• High reverberation time

• Low absorption coefficient

• Limited factors affecting architectural acoustics

• None of these

Sabine's formula is used to calculate the _______ of a room.

The relationship between the energy of the photon and the kinetic energy of the emitted photoelectron can be written as.......

Which of the following is correct statement?

• Energy in the universe is in the form of electromagnetic radiation and matter

• Matter should also possess dual nature

• De-Broglie waves are waves associated with every moving particle

• All of these

When the kinetic energy of an electron is increased, the wavelength of the associated wave will......

• Increase

• Decrease

• Wavelength does not depend on the kinetic energy

• Increases and then decreases