PHYSICS MULTIPLE CHOICE QUESTIONS SET 09

PHYSICS 

MULTIPLE CHOICE QUESTIONS SET 09

1. The specific volume of water is minimum at
A. -4°C                   
B. 0° C                 
C. 4° C                
D. 273° C
Answer: Option  c
 
2. Transfer of heat by molecular collision is
A. convection              
B. radiation             
C. collimation                 
D. conduction
Answer: Option  d
 
3. The one used in the preparation of lenses and prisms
A. soda glass               
B. flint glass               
C. quartz glass               
D. pyrex glass
Answer: Option  b
 
4. The heating element in an electric stove is made of
A. iron                  
B. copper               
C. nichrome                     
D. tungsten
Answer: Option  c
 
5. Pyrometer works on
A. Charles’s law        
B. Boyle’s law                  
C. Stefan’s law              
D. none of these
Answer: Option  c
 
6. The ozone layer protects us from
A. ultra violet rays          
B. radio waves             
C. visual radiation           
D. infrared radiation
Answer: Option  a
 
7. Mesons are found in
A. alpha–rays              
B. laser beam                 
C. cosmic rays                 
D. x–rays
Answer: Option  c
 
8. The process in which heat is transmitted without the aid of the intervening medium is
A. conduction              
B. convection             
C. radiation                
D. none of these
Answer: Option  c
 
9. The colour of light is determined by the
A. wavelength                
B. amplitude                   
C. phase                   
D. velocity
Answer: Option  a
 
10. Which of the following is used as a moderator in nuclear reactor?
A. ordinary water                  
B. radium                        
C. graphite                    
D. thorium
Answer: Option  c