PHYSICS MULTIPLE CHOICE QUESTIONS SET 08

PHYSICS 

MULTIPLE CHOICE QUESTIONS SET 08

1. Control rods used in nuclear reactors are made of
A. stainless steel            
B. graphite           
C. cadmium          
D. plutonium
Answer: Option  c
 
2. Least distance of distinct vision is nearly equal to
A. 1 metre            
B. 0.25 metre                     
C. 0.5 metre            
D. 0.2 metre
Answer: Option  b
 
3. The scientist who discovered the relation between electricity and magnetic effects
A. Ampere                   
B. Laplace                 
C. Ohm              
D. Oersted
Answer: Option  d
 
4. Beta particles are
A. neutrons             
B. protons                 
C. electrons          
D. thermal neutrons
Answer: Option  c
 
5. The unit of wavelength is
A. kg                 
B. second             
C. Ms^-1         
D. angstrom
Answer: Option  d
 
6. The instrument which is used to measure the current flowing through a circuit is
A. volt meter           
B. ammeter              
C. ohm meter               
D. magnetometer
Answer: Option  b
 
7.  The spectrum of a source of light is called
A. line spectrum             
B. continuous spectrum     
C. band spectrum      
D. emission spectrum
Answer: Option  c
 
8. Laser is a device to produce
A. magnetic waves          
B. microwaves                  
C. coherent waves            
D. x–rays
Answer: Option  c
 
9. Which one of the following cannot pass through vacuum?
A. sound                 
B. electric field                
C. magnetic field                
D. light
Answer: Option  a
 
10. Instrument used to measure earthquake shocks
A. anemometer                
B. pyrometer             
C. hydrometer           
D. seismometer
Answer: Option  d