A 500kg car which was initially at rest travelled with an acceleration of 5m sec-2,…
A 500kg car which was initially at rest travelled with an acceleration of 5m sec-2, its kinetic energy…
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Which of the following statements defines correctly the efficiency of a machine?
Which of the following statements defines correctly the efficiency of a machine? A. the load carried by the…
Natural radioactivity consists of the emission of
Natural radioactivity consists of the emission of A. ( alpha ) -particle and ( beta ) rays B.…
The density 400cm3 of palm oil was 0.9gcm-3 before frying. If the density of the…
The density 400cm3 of palm oil was 0.9gcm-3 before frying. If the density of the oil was 0.6gm-3…
In the process of electrification by induction, the amount of induced charge in relation to…
In the process of electrification by induction, the amount of induced charge in relation to the inducing charge…
The activity of a radioactive substance depends on
The activity of a radioactive substance depends on A. temperature and purity B. temperature and age C. purity…
According to Ohm’s law, the ratio V/I is constant for
According to Ohm’s law, the ratio V/I is constant for A. an electrolyte B. a diode C. a…
A cell has an open circuit voltage V1 and a closed circuit voltage V2 when…
A cell has an open circuit voltage V1 and a closed circuit voltage V2 when a current is…
the ratio of the linear expansivity of copper to that of iron is approximately 1.5….
the ratio of the linear expansivity of copper to that of iron is approximately 1.5. A specimen of…
A man stands one-third of the way between two walls and claps his hands, He…
A man stands one-third of the way between two walls and claps his hands, He hears two distinct…