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Jamb Physics Past question

A string is sustaining a stationary wave when

Jamb 1978 A string is sustaining a stationary wave when A. the frequency of the wave is hot proportional to the wavelength of the wave B. the amplitude of vibration is always zero C. two equal waves are travelling in opposite directions D. the waves are longitudinal E. the frequency […]

No Picture
Jamb Physics Past question

The temperature of 20°C is the same as 

Jamb 1978 The temperature of 20°C is the same as  A. 36°F B. 68°F C. 11.1°F D. 43.1°F E. 25°F ANSWER: Option  B EXPLANATION: First thing you should know is the lower and upper fixed point of both Fahrenheit and Celsius scale. For Fahrenheit: upper is 212°F while lower is […]