Tag: physics

sources of energy

Questions cover luminous intensity, luminous flux, illuminance, candela, inverse square law, and photometric calculations including light source measurements and exposure problems.

substances, objects and energy

Sound reverberation, multiple reflections, and acoustic properties of auditoriums for Class IX

various types of barometer

introduction to sound waves

Covers various forms of energy (kinetic, potential, chemical, electrical, thermal, mechanical, magnetic, sound) and energy transformations including work, power, and energy conservation principles

something about earth

sound waves are longitudinal waves

problems on properties of waves