Grating element is equal to
A) nλ/sinθ
B) nλ
C) sinθ
D) cosθ
Correct Answer:
Verified
Q1: When two waves meet, their displacements
A)add up
B)cancel
Q2: Splitting of white light in to constituent
Q4: With diffraction grating, the angles are
A)small
B)greater
C)zero
D)close to
Q5: Extra distance travelled by one of waves
Q6: Spreading of wave as it passes through
Q7: Fringes are referred to as
A)minima
B)maxima
C)nodes
D)normal points
Q8: Principle of superposition can be applied to
A)EM
Q9: Coherent sources emit waves that have
A)increasing phase
Q10: Interference pattern of light and dark bands
Q11: Microwaves have wavelength of about
A)10 cm
B)20 cm
C)30
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