Q.19. Suppose a candle is placed between two parallel mirrors facing each other. If the distance between the two mirrors is 20 cm then at which of the following distances will you get no image in any mirror?
a. 10 cm
b. 20 cm
c. 30 cm
d. 50 cm

Dear Student,
                     In between  the mirrors at any point we get image 
                      if object is outside of the mirrors we wont get image hence 
                       Option C and D are correct.
Regards

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c
 
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