A radioactive isotope has a decay constant of 10-6s-1.Calculate its half - life?
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2016
Which of the following electromagnetic waves has the shortest wavelength?
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2016
A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2ms-2. The time required to bring the train to a complete halt is
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2016
A projectile is fired from the ground level with a velocity of 300ms-1 at an angle of a 30o to the horizontal.Calculate the time taken to reach the maximum height?[g = 10ms-2]
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2016
A metre rule is pivoted at its mid-point with a vertical force of 10N hanging from the distance 30cm from the mid-point. At what distance must a 15N force hang to balance the ruler horizontally?
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2016
Which of the following does Not use magnetic effect of current to function?
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2016
What will happen to the pressure of a gas if its temperature is reduced to -273oC?
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2016
The relative density of a liquid is the ratio of the
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2016
Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 106Nm-2 with a volume of 10-3m3.[R = 8.3jmol-1K-1]
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2016
Which of the following waves is both transverse and mechanical?
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2016
Which of the following instruments can be used to measure current in an a.c circuit?
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2016
Which of the following is obtained when a magenta is mixed with green colour?
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2016
Shadows and eclipse result from the
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2016
A pool of water appears to be 1.00m deep when viewed vertically from above. What is the actual depth of the pool?[Refractive index of water = 1.33]
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2016
Vapour is said to be saturated on top of an enclosed liquid if _________
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2016
The impulse of a force is deduced from Newton's second law as
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2016
A body which weighs 50N in air displaces 3.7kg of water when partially immersed in water. Calculate the upthrust on the body?
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2016
A manometer is an instrument used for measuring
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2016
A satellite revolving around the earth is kept on its orbit by
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2016
Which of the following statements about wave motion is correct?