General Science - Everyday Science MCQs Set-5

1) Video camera is used to convert
(A) Heat into x-rays
(B) Sound into electrical signals
(C) Electrical signals into pictures
(D) Picture into electrical signals

2) The range of a 100 meter high T.V. transmitter ariel is about
(A) 10 km
(B) 20 km
(C) 30 km
(D) 50 km

3) The waves used for sending signals to the satellite from ground station are
(A) X-rays
(B) Sound waves
(C) Micro waves
(D) Ultraviolet rays

4) A mobile phone sends and receives messages through
(A) Sound waves
(B) Micro waves
(C) Ultraviolet waves
(D) Radio waves

5) The procedure of crushing the gallstones and kidney stone by laser is called
(B) Kidney surgery
(C) Angiography
(D) Lithotripsy

6) Three dimensional image formed by laser is called
(A) Photograph
(B) Hologram
(C) Two dimensional sketch
(D) Photocopy

7) Optical fibres are the fine strands of
(A) Glass
(B) Iron
(C) Calcium
(D) Mercury

8) The satellites which revolves in such an orbit, so that they move with earth rotation are called
(A) Geo satellites
(B) Stationary satellites
(C) Earth-space satellites
(D) Geo-stationary satellites

9) Radar transmits short pulses of high frequency, which are called
(A) Infrared waves
(B) Radio waves
(C) Ultraviolet waves
(D) Sound waves

10) The ray with high penetrating power is
(A) α rays
(B) β rays
(C) γ rays
(D) x-rays

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