Basic Science Related Question

DoThe Best
By DoThe Best February 5, 2016 15:35

Basic Science Related Question

Which one of the following common devices works on the basis of the principle of mutual induction?  

A.  Tubelight
B.  Transformer
C.  Photodiode
D.  Led

Answer : B.  Transformer

Dc current can be controlled by which one of the following components?  

A. Impedance
B. Resistance
C. Capacitance
D. Inductance

Answer : B. Resistance

Mesons are found in  

A.  Alpha -rays
B.  Laser beam
C.  X – rays
D.  Cosmic rays

Answer : D.  Cosmic rays

A moderator is used in nuclear reactors in order to  

A.  increase the no.of.neutrons
B.  decrease the no.of.neutrons
C.  slow down the speed of neutrons
D.  Anthony S. D’Mello

Answer : C.  slow down the speed of neutrons

The wavelength of X-rays is of the order of  

A.  1 cm
B.  1 m
C.  10 micron
D.  1 Angstrom

Answer : D.  1 Angstrom

 

DoThe Best
By DoThe Best February 5, 2016 15:35
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