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A. lungs
B. liver
C. kidneys
D. None of these
Answer
B. liver
Submitted by: Toheed Ahmed
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
Answer
C. 30 km
Submitted by: Toheed Ahmed
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
Answer
C. Micro waves
Submitted by: Toheed Ahmed
A mobile phone sends and receives messages through ________?
A. Micro waves
B. Sound waves
C. Radio waves
D. Ultraviolet waves
Answer
C. Radio waves
Submitted by: Toheed Ahmed
The procedure of crushing the gallstones and kidney stone by laser is called ________?
A. Kidney surgery
B. Angeography
C. Lithotropsy
D. MRI
Answer
C. Lithotropsy
Submitted by: Toheed Ahmed
Three dimensional image formed by laser is called?
A. Photograph
B. Two-dimensional sketch
C. Hologram
D. Photocopy
Answer
C. Hologram
Submitted by: Toheed Ahmed
The satellites which revolve 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
Answer
D. Geo-stationary satellites
Submitted by: Toheed Ahmed
Radar transmits short pulses of nigh frequency, which are called
A. Infrared waves
B. Ultraviolet waves
C. Radio waves
D. Sound waves
Answer
C. Radio waves
Submitted by: Toheed Ahmed
The ray with high penetrating power is ________?
A. x-rays
B. y-rays
C. a-rays
D. 13-rays
Answer
C. a-rays
Submitted by: Toheed Ahmed
The penetration of x-rays through an object depends upon the object’s
A. Density
B. Shape
C. Size
D. Pressure
Answer
A. Density
Submitted by: Toheed Ahmed