Principle of superposition can be applied to
A) EM waves
B) sound waves
C) radio waves
D) all of above
Correct Answer:
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Q3: Grating element is equal to
A)nλ/sinθ
B)nλ
C)sinθ
D)cosθ
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
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
Q12: In young double slit experiment, the wavelength
Q13: Wavelength of an incident light when it
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