Physics

Name two factors on which the heat energy liberated
A Lens forms an upright and diminished image of an object
A ray of light travels from water to air
The diagram below shows a point source P inside a water container
Loudness of the sound heard
What are damped vibrations
A wire of length 80 cm has a frequency of 256 Hz
The colour code of the wire connected to the metallic body
Draw the diagram of a dual control switch when the appliance is switched ON
Which particles are responsible for current in conductors
To which wire of a cable in a power circuit
To which wire should the fuse be connected
Explain the meaning of the statement current rating of a fuse is 5A
In the transmission of power, the voltage of power generated at the generating stations
Answer the following questions based on a hot cathode ray tube
State three factors on which the rate of emission of electrons
What are free electrons
Give an example of a non-contact force
How does the magnitude of this non-contact force
A boy weighing 40kgf climbs up a stair of 30 steps each 20cm high