Loudness increases as a vibrating tuning fork is brought nearer the end of a pipe containing air column due to?
A. resonance B. echo C. reverberation D. diffraction Correct Answer: Option A A. resonanceA tuning fork of frequency 600Hz is sounded over a closed resonance tube. If the first and second resonant positions are 0.130m and 0.413m respectively, calculate the speed of sound in air.
A. 508.4ms‾¹ B. 480.0ms‾¹ C. 339.6ms‾¹ D. 169.8ms‾¹ Correct Answer: Option C C. 339.6ms‾¹ Explanation v=fλ v=2f×(l2−l1) v=2×600×(0.413−0.130) v=1200×0.283...In which of the following media does sound travel faster?
A. water B. brass C. air D. wood Correct Answer: Option B B. brassWhen white light passes through a triangular glass prism, there is dispersion because of?
A. diffraction of light B. polarisation of light C. the difference in speed of the components of light D. the interference of light waves in glass Correct Answer: Option C C. the difference in speed of the components of lightA simple microscope forms an image 10cm from an eye close to the lens. If the object is 6cm from the eye, calculate the focal length of the lens
A. 3.75cm B. 4.00cm C. 15.00cm D. 16.00cm Correct Answer: Option A A. 3.75cmProducts
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