Viva Applied Physics II

Which one of the following breakdowns occurs in the thin region?

• Zener Breakdown

• Avalanche Breakdown

• Zener and Avalanche Both

• None

In which direction does the zener diode operate?

• Forward Bias

• Reverse Bias

• Forward and Reverse Both

• None

An ideal diode in forward bias have _________ resistance

• Infinite

• Finite

• Zero

• None

The depletion layer in reverse bias is

• Very thin

• Thin

• Thick

• None

For an intrinsic semiconductor at 0 K, which of the following statement is true?

• Valence band is completely filled, and conduction band is empty.

• Valence band and conduction band both are partially filled.

• Valence band is filled with holes and conduction band with electrons.

• Both are filled with electrons.

The energy the electron possess at 0 K is

• Fermi energy

• Valence energy

• Conduction Energy

• Free energy

Planck constant is measured in

• Joule/second

• Joule-second

• Farad/meter

• Henery/meter

Which principle in quantum mechanics states that certain physical quantities are quantized and can only have discrete values?

• Heisenberg Uncertainty Principle
  
  

• Pauli Exclusion Principle

• Planck's Principle
  

• Quantization Principle

The energy radiated by black body is directly proportional to

• T^2

• T^3

• T^4

• T

The Stefan-Boltzmann constant has units of

• kcal/m² hr K⁴
  

• kcal/m hr K⁴
  

• kcal/hr K⁴
  

• kcal/m² K⁴