The following question given below consist of an Statement –I and Statement-II Type questions. Use the following Key to choose the appropriate answer.
A
If both Statement-I and Statement-II are true, and Statement-II is the correct explanation of Statement-I.
B
If both Statement-I and Statement-II are true but Statement-II is not the correct explanation of Statement-I.
C
If Statement-I is true but Statement-II is false.
D
If Statement-I is false but Statement-II is true. (i) Statement-1 : Thin films such as soap bubble or a thin layer of oil on water show beautiful colours when illuminated by white light. Statement-2 : It happens due to the interference of light reflected from the upper surface of the thin film. (ii) Statement-1 : Interference pattern is made by using blue light instead of red light, the fringes becomes narrower. Statement-2 : In Young's double slit experiment, fringe width is given by relation β = 
. (iii) Statement-I : The phenomenon of interference is based on Conservation of energy. Statement-II : For observing interference between two waves the amplitude must be nearly equal. (iv) Statement-I : Total number of maxima obtained over screen remains same whether Young's Double slit experiment is performed in air or in water with same setup. Statement-II : β water = 
(in Young's double slit experiment).
. (iii) Statement-I : The phenomenon of interference is based on Conservation of energy. Statement-II : For observing interference between two waves the amplitude must be nearly equal. (iv) Statement-I : Total number of maxima obtained over screen remains same whether Young's Double slit experiment is performed in air or in water with same setup. Statement-II : β water = (in Young's double slit experiment).
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Ans.
(i)
Sol.
(ii)
Sol. Statement-1 is true & Statement-2 is true and Statement-2 is correct explanation of the Statement-1.
(iii)
Sol.
(iv)
Sol. Statement-I is false but statement-II is true.
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