Physics — Light, Sound, Electricity
15 questions on optics, acoustics, and electrical concepts from NCERT 8-10.
Physics — Light, Sound, Electricity
15 questions · 10 minutes
Q1.The mirror used in headlights is:
Q2.The lens used to correct myopia is:
Q3.White light splits into colours through a prism. This is called:
Q4.Sound cannot travel through:
Q5.The unit of frequency is:
Q6.Ohm's Law states:
Q7.Household wiring uses which circuit?
Q8.The power consumed by an appliance is measured in:
Q9.Ultrasound has frequency above:
Q10.A mirage is due to:
Q11.The fuse wire in an electrical circuit is made of:
Q12.The colour of light with the longest wavelength is:
Q13.An echo is produced by:
Q14.LED stands for:
Q15.The device used to measure electric current is:
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