Verified Solution • 2025–26 Session moderate

QNEET-2023-Ph-221: NEET 2023 Physics - Class 11 NEET-2023-Ph-221 Solution: The amount of energy required to form a soap bubble of radius 2 …

The amount of energy required to form a soap bubble of radius 2 cm from a soap solution is nearly: (surface tension of soap solution = 0.03 N m−10.03\ \text{N m}^{-1}) 5.06×10−4 J5.06 \times 10^{-4}\ \text{J} 3.01×10−4 J3.01 \times 10^{-4}\ \text{J} 50.1×10−4 J50.1 \times 10^{-4}\ \text{J} 30.16×10−4 J30.16 \times 10^{-4}\ \text{J}

Multiple Choice Options

  • A 5.06×10−4 J5.06 \times 10^{-4} \mathrm{~J} 5.06 _ 1 0 _ 4   J
  • B 3.01×10−4 J3.01 \times 10^{-4} \mathrm{~J} 3.01 _ 1 0 _ 4   J
  • C 50.1×10−4 J50.1 \times 10^{-4} \mathrm{~J} 50.1 _ 1 0 _ 4   J
  • D 30.16×10−4 J30.16 \times 10^{-4} \mathrm{~J} 30.16 _ 1 0 _ 4   J

Step-by-Step Verified Solution

E = 2 T ( 4 � R 2 ) = 2 ( 0.03 ) ( 4 ) ( 3.14 ) ( 2 _ 10 _ 2 ) 2 = 3.01 _ 10 _ 4   J

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