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Question 1 of 10
1. Question
To what height will a missile fired vertically upwards with a speed of 28m/s attain if air resistance is neglected?
[g= 9.8m/s2]CorrectIncorrect -
Question 2 of 10
2. Question
Which of the following is not an example of a machine
CorrectIncorrect -
Question 3 of 10
3. Question
How long will it take to heat 3kg of water from 280C in an electric kettle taking 6A from 220V supply?
(specific heat capacity of water is 4180J/kg/K)CorrectIncorrect -
Question 4 of 10
4. Question
A cell with e.m.f of 1.5V and an internal resistance of 10.0 ohms is connected to two resistances of 2.0 and 3.0Ω in series.
The current produced by this cell isCorrectIncorrect -
Question 5 of 10
5. Question
Which of the following is not essential for the production of electron by thermionic emission?
CorrectIncorrect -
Question 6 of 10
6. Question
If an object moves with a constant speed round a circle, it has an acceleration which is
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Question 7 of 10
7. Question
An electric string of length X is stretched through a length by force F, the area of cross-section of the string is A and its young modulus is E. Which of the following expressions is correct?
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Question 8 of 10
8. Question
The density of a solid is 130gcm3 at the temperature of 25⁰C if the linear expansion of the solid is 2.0 x 105X2
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Question 9 of 10
9. Question
A bullet leaves the barrel of a gun with the speed of 80ms-1 If the barrel is 20m long,
find the acceleration of the bulletCorrectIncorrect -
Question 10 of 10
10. Question
Sound and water waves are classified as mechanical waves and they cannot be propagated in one of the following media
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