Forum

Surface Chemistry

What is catalysis? Distinguish between homogeneous and heterogeneous catalysis with examples.

11/11/2024

Physics

12th (Science)

Chemical Kinetics

What is the rate constant of a reaction? Describe the relationship between the rate constant and temperature, according to the Arrhenius equation.

11/11/2024

Physics

12th (Science)

Electrochemistry

Define the standard electrode potential. Explain its significance in predicting the spontaneity of redox reactions.

11/11/2024

Chemistry

12th (Science)

Electronic Devices

  1. Explain the working of a junction diode. Describe how it acts as a rectifier.

11/11/2024

Physics

12th (Science)

Communication Systems

Define amplitude modulation. What are the advantages and disadvantages of amplitude modulation in communication systems?

11/11/2024

Physics

12th (Science)

Semiconductors

Explain the concept of intrinsic and extrinsic semiconductors. What is the role of doping in extrinsic semiconductors?

11/11/2024

Physics

12th (Science)

Atoms

Describe Bohr’s postulates for the model of the hydrogen atom. How does this model explain the line spectrum of hydrogen?

11/11/2024

Physics

12th (Science)

Dual Nature of Matter and Radiatios

State Einstein’s photoelectric equation. Explain the terms involved and discuss the significance of the work function.

11/11/2024

Physics

12th (Science)

Nuclei

Define binding energy of a nucleus. How does it vary with the mass number of the nucleus?

11/11/2024

Physics

12th (Science)

Electromagnetic Waves

List the properties of electromagnetic waves. Describe their propagation in free space.

11/11/2024

Physics

12th (Science)