In the diagram above a beam of white light travels from a rare to a dense medium. What colours of light do the rays a, b and c respectively represents?
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2000
The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively
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2000
The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content of P,Q and R
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2000
An engineer intends to deviate a light ray from its path by 120o through reflection from a plane mirror. Calculate the angle of incidence
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2000
A transverse wave is applied to a string whose mass per unit length is 3 x 10-2kgm-1. If the string is under a tension 12N, the speed of the propagation of the wave is
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2000
In the a.c circuit above, the current value is
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2000
If current flows in the direction of the arrows in the solenoid above, the north pole is at
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2000
In the diagram above, the values of V1 and V2 are respectively
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2000
A handbag containing some load weighing 162N is carried by two students each holding the handle of the bag next to him. If each handle is pulled \( 60^{\circ} \) to the vertical, find the force on each student's arm
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2000
The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively
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2000
I. CoherenceII. Same frequencyIII. Same wavelengthIV. Same IntensityWhich of the conditions above are necessary to produce interference fringes?
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2000
I. The frictional force is independent of the area of the surfaces in conductII. The frictional force depends on the nature of the surfaces in contactIII. The frictional force depends on the speed of slidingIV. The frict…