Everyday Science MCQs

Correct answer D. tetravalent

Correct answer B. Minority carriers

Correct answer B. Equal to ordinary light

Correct answer A. Further stimulation

Correct answer A. Ne only

Correct answer D. 10⁻³ s

Correct answer A. Inverted population

Correct answer A. Absorbed

Correct answer B. The velocity of electron must be very high according to uncertainty principle

Correct answer B. Diffraction by crystalline solids

Correct answer B. Electron excitation in the gas

Correct answer D. The wavelengths of X-rays are of the same order of magnitude as the separation between atoms in a crystal

Correct answer C. The kinetic energy of the incident electron i.e. the potential difference through which they are accelerated

Correct answer D. 6.2 × 10⁻¹⁰ m

Correct answer B. The bombardment of target by electrons

Correct answer A. Increasing the potential difference between the cathode and the target

Correct answer D. X-rays

Correct answer D. hc/eV

Correct answer B. B & C

Correct answer D. Γ-rays