Recent content by wlng81

Hi experts, I am aware using prisms enable total internal reflection while using mirrors there is only reflection of light. The difference is that in the former there is 100% light intensity after reflection while the latter does not. I have also read that using prisms is better than using...

Out of curiosity, what are the factors that separate a good mic from a lousy one?

Hi Bobby, can I say that the frequency of the sound wave is reflected in the frequency of the induced current and the amplitude of the sound wave is reflected in the amplitude of the induced emf?

Dear all, I have encountered an issue in understanding how microphone works and I hope you guys can assist. There are two scenarios involved. In the first scenario, there is tuning fork and a microphone. The microphone contains a small disc attached to a magnet and a fixed coil. (Please...

Thanks everyone! I love the input of answers as I have always been criticised by my mentoring teacher that I lack the subject mastery (as a matter of fact, I am criticised once more today...) and these answers really expose me to a higher realm of the physics world :!)

Hi, I am going to teach a class of year 9 students on the topic "Thermal Properties of Matter" and the concept of Internal Energy is mentioned inside. As I was trying to anticipate the types of questions that will be asked by them, this question suddenly struck me: Is there a limit to the...