Which of the following statements is TRUE of photoelectric effect?
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1987
What type of reaction is represented by the following scheme? \( ^2 _1X \) + \( ^{2} _{1}Y \) + \( ^{3} _{2}Z \) + \( ^{1} _{0}n \) + energy
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1987
The fig above represents the main sequence of energy conversion at Kainji dam. What is the efficiency of the system?
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1987
A 50kg block is dropped from a point 10cm above as shown in the fig above. if the force constant of the spring is 4.0 x 104Nm-1, find the maximum compression of the spring [g = 10ms-2]
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1987
The fig above shows two connected bodies of masses M1 and M2 in equilibrium under gravity. The tension in the upper string is
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1987
The velocity time graph above describes the motion of a particle between two points P and Q. What is the distance between P and Q?
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1987
In the figure above, M and N are insulated metal spheres in contact. A negatively charged ebonite rod P is I brought near M. When M and N are Separated and the rod is taken away, which of the following statements is corr…
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1987
In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resistor is
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1987
A man walks 8km north and then 5km in a direction 60<sup>o</sup> east of north. Find the distance from his starting point