Chemistry-
General
Easy
Question
The dissociation equilibrium of a gas AB2 can be represented as, 
The degree of dissociation is x and is small as compared to 1 The expression relating the degree of dissociation (x) with equilibrium constant Kp and total pressure P is:<
The correct answer is:
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R: 
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Maths-
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If the mean deviation of number 1, 1 + d, 1 + 2d, …, 1 + 100d from their mean is 255, then d is equal to
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The locus of 
which lies in shaded region (excluding the boundaries) is best represented by
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A bar magnet of length 3 cm has points A and B along its axis at distances of 24 cm and 48 cm on the opposite sides. Ratio of magnetic fields at these points will be
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Physics-General
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Two equal bar magnets are kept as shown in the figure. The direction of resultant magnetic field, indicated by arrow head at the point P is (approximately)
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The figure below shows the north and south poles of a permanent magnet in which n turn coil of area of cross-section A is resting, such that for a current i passed through the coil, the plane of the coil makes an angle 
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The figure below shows the north and south poles of a permanent magnet in which n turn coil of area of cross-section A is resting, such that for a current i passed through the coil, the plane of the coil makes an angle with respect to the direction of magnetic field B. If the plane of the magnetic field and the coil are horizontal and vertical respectively, the torque on the coil will be
Physics-General
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A uniform magnetic field, parallel to the plane of the paper existed in space initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by
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The square loop ABCD, carrying a current i, is placed in uniform magnetic field B, as shown. The loop can rotate about the axis XX'. The plane of the loop makes and angle ( < 90°) with the direction of B. Through what angle will the loop rotate by itself before the torque on it becomes zero
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Following figure shows the path of an electron that passes through two regions containing uniform magnetic fields of magnitudes B1 and B2. It's path in each region is a half circle, choose the correct option
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Physics-General
