Question:medium
The unit of Planck's constant is:
The unit of Planck's constant is:
Show Hint
Planck's constant has the same dimensions as angular momentum ($[ML^{2}T^{-1}]$).
Updated On: Apr 8, 2026
- Joule/s
- Joule-s
- Joule-$m^{2}$
- Joule-m
Show Solution
The Correct Option is B
Solution and Explanation
Was this answer helpful?
0
Top Questions on Modern Physics
- A rod of length L is heated from temperature \( T_1 \) to \( T_2 \). Let \( T_2 - T_1 = \Delta T \) and the expansion of the rod be \( \Delta L_1 \). The rod is further heated from \( T_2 \) to \( T_3 \) such that \( T_1 + T_3 = 2T_2 \). Find the expansion of the rod \( \Delta L_2 \):
- JEE Main - 2026
- Physics
- Modern Physics
- Electron and proton are accelerated with the same potential to achieve de-Broglie wavelengths of \( \lambda_1 \) and \( \lambda_2 \). Given \( m_p = 1849 \, m_e \), find the ratio \( \lambda_1/\lambda_2 \):
- JEE Main - 2026
- Physics
- Modern Physics
- Find the ratio of momentum of photons of 1\textsuperscript{st and 2\textsuperscript{nd} line of Balmer series of hydrogen atom.}
- JEE Main - 2026
- Physics
- Modern Physics
- Shortest wavelength of Lyman series is \(x\). Find the difference of wavelengths of first Balmer and second Balmer line in terms of \(x\).
- JEE Main - 2026
- Physics
- Modern Physics
- Want to practice more? Try solving extra ecology questions todayView All Questions
