TNPSC Speed, Velocity, Acceleration GK Questions & Answers - 2

Question: 6

Microwaves are electromagnetic waves with frequency, in the range of

(A) Hertz

(B) Micro hertz

(C) Mega hertz

(D) Giga hertz

Question: 7

Which of the following electromagnetic radiations has the smallest wavelength?

(A) Gamma rays

(B) X-rays

(C) Ultraviolet

(D) Microwaves

Question: 8

Which one of the following does TV remote control unit use to operate a TV set?

(A) Radio waves

(B) Micro waves

(C) Sound waves

(D) Light waves

Question: 9

The period of pendulum depends upon

(A) Amplitude

(B) Energy

(C) Mass

(D) Length

Question: 10

Maximum value of the wavelength of ultrasonic waves is

(A) 33 cm

(B) 20 cm

(C) 1.65 m

(D) 1.65 cm