Quick practice
Question 1 of 4
Assertion: A prism produces lateral dispersion but no net change in the direction of the original ray if it is an equilateral prism used in a pair with apexes reversed.
Reason: Two identical prisms placed with reversed apexes produce equal and opposite deviations for each wavelength.
A
Both (A) and (R) are true, but (R) is NOT the correct explanation of (A).
B
Both (A) and (R) are true, and (R) is the correct explanation of (A).
C
(A) is false, but (R) is true.
D
(A) is true, but (R) is false.
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