PHYSICS MULTIPLE CHOICE QUESTIONS SET 27

PHYSICS   

MULTIPLE CHOICE QUESTIONS SET 27

1. The clouds float in the atmosphere because of their low
A.  Density            
B.  Temperature             
C.  Velocity               
D.  Pressure
Answer: A Density
 
2. Microwave oven consumes less power due to
A.  Short wavelength of radiation               
B.  Small frequency of radiation
C.  Small frequency as well as wavelength of radiation
D.  Large frequency as well as wavelength of radiation
Answer: A (Short wavelength of radiation)
 
3. The sun is seen before the actual sun rise because of
A.  Reflection        
B.  Refraction           
C.  Rectilinear propagation of light     
D.  Scattering of light
Answer: B  (Refraction)
 
4. Candela is the unit of
A.  Luminous effect        
B.  Luminous pressure        
C.  Luminous intensity      
D.  Luminous flux
Answer: C  (Luminous intensity)
 
5. The shortest unit of length is
A.  Nanometer         
B.  Micron              
C.  Fermimeter                    
D.  Angstrum
Answer: A (Nanometer)
 
6. Wright Brothers are regarded inventors of the
A.  Aeroplane         
B.  Computer             
C.  Bicycle                     
D.  Balloon
Answer: A (Aeroplane)
 
7. A device used to measure current is
A.  Ammeter              
B.  Altimeter           
C.  Barometer              
D.  Galvanometer
Answer: A (Ammeter)
 
8. What is the unit for measuring the pitch or frequency of sound?
A.  Decible           
B.  Coulomb                   
C.  Cycles               
D.  Hum
Answer: A (Decible)
 
9. Which of the following is used as a moderator in nuclear reactor?
A.  Graphite            
B.  Radium            
C.  Thorium             
D.  Ordinary water
Answer: A (Graphite)
 
10. The light is a
A.  Longitudinal wave      
B.  Transverse wave            
C.  Both           
D.  None of these
Answer: B (Transverse wave)