JEE Main20252 Apr 2025Morning ShiftPhysicsWave OpticsActual
If the measured angular separation between the second minimum to the left of the central maximum and the third minimum to the right of the central maximum is 30^ in a single slit diffraction pattern recorded using 628 nm light, then the width of the slit is _______ m .
Correct answer
0
Step-by-step solution
aligned & ₁= ⁻¹ ( 2 a ) & ₂= ⁻¹ ( 3 a ) & ₁+ ₂=30^ aligned aligned & ⁻¹ ( 2 a )+ ⁻¹ ( 3 a )= 6 & 2 a 1- ( 3 a )^2 + 3 a 1+ ( 2 a )^2 = 6 aligned Here =628 ~nm After solving A =6.07 ~m Approximate Method : aligned & = ₁+ ₂ & 6 = 2 a + 3 a & 6 = 5 a (628 ~nm ) & a=6 ~m aligned