Question:

A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm. The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from the slit, will be:

(1) 30°

(2) 15° 

(3) 60° 

(4) 45°

                                                        JEE-2024         

Solution:                
A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm. The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from the slit, will be: (1) 30° (2) 15° (3) 60° (4) 45° JEE-2024

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