Physics-Objective Related Question Answers
751. .....is an instrument for determining speeds of aeroplanes and motor boats.?
Tachometer
752. .....an instrument which prints automatically messages sent from one place to another, on telegraph lines.?
Telephone
753. .....is a device by virtue of which two persons at two different places can communicate. It consists of two main parts (i) a microphone and (ii) a receiver.?
Teleprinter
754. .....is an apparatus used for observing distant objects.?
Telescope
755. .....is an instrument for measuring horizontal and vertical angles.?
Theodolite
756. .....is an instrument based on thermo-electricity used for measuring temperatures.?
Thermocouple
757. .....is an apparatus used for measuring temperature.?
Thermometer
758. .....is an instrument used to regulate the temperature to a particular degree.?
Thermostat
759. .....is an instrument to measure viscosity.?
Viscometer
760. What is the unit of potential difference?
Volt
761. Knot is used for measuring?
Speed of ships
763. Unit of viscosity of fluid?
Poise
764. Decibel is the unit for measuring the intensity of?
Sound
765. What is the S.I. unit of pressure?
Pascal
766. One angstrom is equal to?
10-10m
767. How many Pascal is the atmospheric pressure?
105 Pascal
768. What is the S.I. unit of magnetic field strength?
Ampere per metre
769. Which is the smallest unit of distance used in Nuclear Physics?
Fermi
770. The unit used to measure radio activity?
Becquerel
771. What is the unit of frequency?
Hertz
772. The power of the Engine is calculated by?
Horse Power (One Horse Power = 746 watt)
773. The unit of Capacitance?
Farad
774. The unit of Inductance?
Henry
775. The unit of atmospheric pressure?
Bar (One Bar=76cm of Hg)
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