In an electrolysis experiment, a cathode of mass 5g is found o weigh 5.01g after…
In an electrolysis experiment, a cathode of mass 5g is found o weigh 5.01g after a current of…
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The bulb of a motorcycle head-lamp is marked 40W, 6V. The resistance of the filament…
The bulb of a motorcycle head-lamp is marked 40W, 6V. The resistance of the filament when it is…
Which of the following is the correct definition of ‘half-life’?
Which of the following is the correct definition of ‘half-life’? A. the average life-time of a radioactive material…
An electric cell has an internal resistance of 2 ohms. A current of 0.5A is…
An electric cell has an internal resistance of 2 ohms. A current of 0.5A is found to flow…
Which of the following statements is correct? The magnetized state of an iron bar can…
Which of the following statements is correct? The magnetized state of an iron bar can be destroyed completely…
What are the units of thermal conductivity?
What are the units of thermal conductivity? A. kg.m.sec2 B. Joule sec-1m-1k-1 C. kg.m D. Newton sec-1m2 E.…
Which of the following statements is correct? The reading of pressure on a mercury barometer…
Which of the following statements is correct? The reading of pressure on a mercury barometer is independent of…
A landlord has eight 40W electric light bulbs, four 60W bulbs and two 100W bulb…
A landlord has eight 40W electric light bulbs, four 60W bulbs and two 100W bulb in his house.…
Which of the following statements is incorrect? The sensitivity of a galvanometer which incorporates an…
Which of the following statements is incorrect? The sensitivity of a galvanometer which incorporates an optical lever arrangement…
A man standing between two parallel mirrors in a barber’s shop will see the following…
A man standing between two parallel mirrors in a barber’s shop will see the following number of his…