School Quiz 2023

Choose the correct symbol of XNOR gate

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The parallel combination of two equal resistors (R) is

• Double the value of R

• Half the value of R

• Inverse of R

• None of the above

Pick the metal which has high conductivity

• Aluminium

• Copper

• Silver

• Gold

The resistivity of a metal is proportional to its physical size

• True

• False

For an electron revolving in an atom, the angular momentum is quantized by

• C. V. Raman

• Michael Faraday

• Niels Bohr

• Max Planck

Velocity of light in free space is

• 3 X 10^8 km/s

• 3 X 10^8 mm/s

• 3 X 10^8 m/s

• 3 X 10^8 cm/s

Doping a semiconductor results in

• increase of conductivity

• decrease of conductivity

• increase of permittivity

• increase of resistivity

The unit of sqrt (1/µ₀ε₀) is

• No Unit

• m/s

• m2/s2

• FH/m2

Which of the following apparatus construction uses electromagnetic induction?

• Voltmeter

• Galvanometer

• Generator

• Electric Motor

The size of the atom in Thomson’s model is……….than/as the atomic size in Rutherford’s model.

• more

• lesser

• same

• doubled