If the temperature of a resistance wire is gradually increased, its resistance will
If the temperature of a resistance wire is gradually increased, its resistance will A. decrease gradually B. first…
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A body executing a simple harmonic motion has an angular velocity of 22 radians per…
A body executing a simple harmonic motion has an angular velocity of 22 radians per second. If it…
In which simple machine is the effort applied between the load and the fulcrum?
In which simple machine is the effort applied between the load and the fulcrum? A. claw hammer B.…
What part of the camera corresponds to the iris of the eye?
What part of the camera corresponds to the iris of the eye? A. diaphragm B. film C. focusing…
A block of ice of mass 10kg at 0°C absorbs heat energy from its surroundings…
A block of ice of mass 10kg at 0°C absorbs heat energy from its surroundings and changes to…
Which statement is NOT correct about Rutherford’s model of the atom?
Which statement is NOT correct about Rutherford’s model of the atom? A. The diameter of the nucleus is…
In which of the following are the substances arranged in descending order of their thermal…
In which of the following are the substances arranged in descending order of their thermal conductivities? A. aluminium,…
A body of mass 4 kg is accelerated from rest by a steady force of…
A body of mass 4 kg is accelerated from rest by a steady force of 9N. What is…
A brass cube of side 10cm is heated through 30°C. If the linear expansivity of…
A brass cube of side 10cm is heated through 30°C. If the linear expansivity of brass is 2.0…
Which device does NOT make use of the magnetic effects of an electric current?
Which device does NOT make use of the magnetic effects of an electric current? A. hot-wire ammeter B.…