List of top Physics Questions on Wavelength and Frequency asked in KEAM

A musician hits a drum 90 times in a minute. The time period of hit is:
Two materials A and B having respective work functions 3 eV and 4 eV are emitting photoelectrons of same maximum kinetic energy of 1eV. If the wavelength of incident light on A is 500 nm, then that of light incident on B is
If the momentum of an α-particle is half that of a proton, then the ratio between the wavelengths of their de-Broglie waves is
Pick out the INCORRECT statement from the following
In a transmitter the audio signal of frequency $ω_m$ is modulated by the carrier signal $ω_c$ and the band pass filter in it rejects the frequencies
An electron of mass \(m_e\) and a proton of mass \(m_p\) are accelerated through the same potential. Then the ratio of their de Broglie wavelengths is
An electron of mass \(m_e\) and a proton of mass \(m_p\) are accelerated through the same potential. Then the ratio of their de Broglie wavelengths is
An electron of mass \(m_e\) and a proton of mass \(m_p\) are accelerated through the same potential. Then the ratio of their de Broglie wavelengths is