Q. For electrons in ‘2s’ and ‘2p’ orbitals, the orbital angular momentum values, respectively, are

Orbital Angular Momentum for 2s and 2p | JEE Mains PYQ | Structure of Atom

Q. For electrons in ‘2s’ and ‘2p’ orbitals, the orbital angular momentum values, respectively, are :

A. 0 and √6 h/2π

B. 0 and √2 h/2π

C. √2 h/2π and 0

D. h/2π and √2 h/2π

Explanation

Step 1: Use orbital angular momentum formula

Orbital angular momentum = √[l(l + 1)] × h / 2π

Step 2: For 2s orbital

For s-orbital, l = 0
Angular momentum = √[0(0 + 1)] × h / 2π = 0

Step 3: For 2p orbital

For p-orbital, l = 1
Angular momentum = √[1(1 + 1)] × h / 2π = √2 h / 2π

Correct Answer = 0 and √2 h / 2π

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