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The value of Planck’s constant is 6.63× 10−34 Js. The velocity of light is 3.0 × 108 ms−1 . Which value is closest to the wavelength in nanometres of a quantum of light with frequency of  8×1015s−1
  • a)
    3×107
  • b)
    2 × 10−25  
  • c)
    5× 10−18  
  • d)
    4 ×101 
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
The value of Planck’s constant is 6.63× 10−34 Js. Th...
The value of Planck can refer to two different things:

1. Planck constant (symbol: h): The Planck constant is a fundamental physical constant that is used in quantum mechanics to relate the energy of a photon to its frequency. Its value is approximately 6.62607015 × 10^-34 joule-seconds (J·s).

2. Planck scale: The Planck scale refers to the scale at which quantum effects become significant in the context of gravity, and is defined in terms of the Planck constant, the speed of light, and the gravitational constant. The Planck length, Planck time, and Planck mass are examples of quantities that define the Planck scale. The Planck length is approximately 1.616255(18) × 10^-35 meters (m), the Planck time is approximately 5.39116(60) × 10^-44 seconds (s), and the Planck mass is approximately 2.176434(24) × 10^-8 kilograms (kg).

Both the Planck constant and the Planck scale are important in understanding the behavior of particles and the fundamental nature of the universe at the smallest scales.
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The value of Planck’s constant is 6.63× 10−34 Js. Th...
By using formula E=hc/lamda and E=hv will give ans
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The value of Planck’s constant is 6.63× 10−34 Js. The velocity of light is 3.0 × 108 ms−1 . Which value is closest to the wavelength in nanometres of a quantum of light with frequency of 8×1015s−1a)3×107b)2 × 10−25 c)5× 10−18 d)4 ×101Correct answer is option 'D'. Can you explain this answer?
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