General Science Physics -12

156. Which one of the following phenomenon explaining the phenomenon of rainbow?

(a) Diffraction                                         
(b) Disperson

(c) Reflection                                            
(d) Refraction

Answer: (b)

157. Red+Green gives ...... colour:

(a) Yellow                                                  
(b) Cyan

(c) Magenta                                               
(d) Violet

Answer: (a)

158. Blue+Green  gives ..... colour.

(a) Pink                                                        
(b) Maganta

(c) Cyan                                                       
(d) Yellow

Answer: (c)

159. Red+Blue gives ....... colour.

(a) Cyan                                                     
(b) Yellow

(c) Magenta                                              
(d) Black

Answer: (c)

160. The colour of Nitrogen vapour lamp:

(a) Red                                                       
(b) Blue

(c) Green                                                   
(d) Yellow

Answer: (a)

161. The colour of Sodium vapour lamp:

(a) Green                                                    
(b) Yellow

(c) Red                                                        
(d) Blue

Answer: (b)

162. ..... is the colour of Neon  vapour lamp:

(a) Red                                                         
(b) Blue

(c) Orange                                                  
(d) Green

Answer: (c)

163. ...... vapour lamp has green colour:

(a) Nitrogen                                              
(b) Sodium

(c) Neon                                                      
(d) Chlorine

Answer: (d)

164. The colour of Hydrogen vapour lamp:

(a) White                                                    
(b) Blue

(c) Yellow                                                    
(d) Green

Answer: (b)

165. The colour of Mercury vapour lamp:

(a) Blue                                                        
(b) Orange

(c) Red                                                          
(d) White

Answer: (d)
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