Category: FPSC Physics Lecturer Test Past Papers

(A) Pressure
(B) Candela
(C) Joule
(D) Ampere

Answer: (B) Candela
Candela is the SI unit of luminous intensity.

(A) Diffraction
(B) Polaristaion
(C) Interference
(D) None of these

Answer: (C) Interference
The colours in soap bubbles, oil slick etc. in a thin film is due to interference.

(A) Wavelength
(B) Intensity
(C) Frequency
(D) None of these

Answer: (B) Intensity
The total radiated power per unit area of cavity aperture is called radiant intensity.

(A) Helium
(B) Carbon
(C) Sodium
(D) Nitrogen

Answer: (A) Helium
An alpha particle is nucleus of helium.

(A) Normal state
(B) Ionized state
(C) Metastable
(D) None of these

Answer: (C) Metastable
Long-lived excited states are often called metastable.