(A) weak vocal chords
(B) lower frequency
(C) higher frequency
(D) higher amplitude
SPSC MCQs
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(A) Radio Detecting and Ranging
(B)Region Device and Ranging
(C) Radio Detect and Rangs
(D) Radio Device and Ranging
August 2, 2021
(A) a wave reflects upon itself
(B) the amplitude of a wave exceeds its wavelength
(C) two waves overlap
(D) the speed of the wave is zero or near zero
August 2, 2021
(A) frequency
(B) intensity
(C) number of overtones
(D)none of these
August 2, 2021
A) frequency increases and speed decreases
B) frequency is the same but the wavelength is smaller in water than in air
C) frequency is same but the wavelength is larger in water than in air
D) frequency and speed both decreases
August 2, 2021
(A) volume of rainfall
(B) cloud volume and speed
(C) salinity of sea
(D) all options are correct
August 2, 2021
(A) rectilinear propagation of light
(B) reflection
(C) refraction
(D) total internal reflection
August 2, 2021
(A) Democritus
(B) Proust
(C) Lavoisier
(D) John Dalton
August 2, 2021
(A) south
(B) north
(C) east
(D) west
August 2, 2021
(A) gravitational pull
(B) rotation of earth
(C) revolution of earth
(D) uneven heating of earth
August 2, 2021