Physics

    Physics
    Which of the following cannot be used for making lenses?
    Soil cannot be used for making lenses.
    Author: rikazzz Comment
    Physics
    Optical fibre works on the
    The optical fibre is a device which works on the principle of total internal reflection by which light signals can be transmitted from one place to another with a negligible loss of energy. Characteristics of Optical Fibre: It has a large bandwidth.
    Author: rikazzz Comment
    Everyday Science
    Which radiation of sunlight is used in heating of a solar cooker?
    Visible light rays cannot produce enough heat to cook food. So we can say that the infrared rays are the main reason for the working of a solar cooker, it provides a good amount of energy/heat to cook food using a solar cooker.
    Author: rikazzz Comment
    Physics
    The capacity of a water heater is measured in
    The capacity of a water heater is measured in litres and metres.
    Author: rikazzz Comment
    Physics
    Dynamo is a device for converting
    Dynamo is a device for converting mechanical energy into electrical energy.
    Author: rikazzz Comment
    Physics
    Air coolers are more suitable for
    Air coolers are more suitable for hot and dry climate.
    Author: rikazzz Comment
    Physics
    Depth of ocean is measured by
    Fathometer is depth finder that uses sound waves to determine the depth of water.
    Author: rikazzz Comment
    Physics
    Transformer is a device to convert
    A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. It converts high voltage AC into low voltage AC and vice-versa. It is based upon the principle of mutual induction. Transformers alone cannot convert AC to DC or DC to AC; besides, they cannot change the voltage or current of DC.
    Author: rikazzz Comment
    Everyday Science
    Which of the following quantities is conserved in Bernoulli`s theorem?
    Author: rikazzz Comment
    Everyday Science
    Electric potential difference is known as
    The unit of the electric potential difference is volt. One volt is defined as the one joule of energy is required to carry one coulomb of charge. Sometimes, the electric potential difference is referred to as voltage. Therefore, electric potential difference is also known as voltage
    Author: rikazzz Comment