Physics-
General
Easy
Question
In the figure shown, two identical discs of radius R each are placed on a smooth horizontal plane. Thread unwraps without slack from discs when they move away from each other. At any instant acceleration of centres of disc A and B are a2 and a1 respectively in opposite direction while their angular acceleration are a2 and a1 respectively. If string unwraps from discs without slipping then
The correct answer is:
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A uniform disc of mass M and radius R is supported vertically by a pivot at its periphery as shown. A particle of mass M is fixed to the rim and raised to the highest point above the centre. The system is then released from rest and it can rotate about its pivot freely. The angular speed of the system when the attached object is directly beneath the pivot is
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physics-General
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A cylinder having radius 0.4 m, initially rotating (at t = 0) with 
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A and B are
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chemistry-General
chemistry-
and enantiomer. 2-butene is
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chemistry-General
chemistry-
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chemistry-General
chemistry-
Which is true about this reaction?
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chemistry-General
chemistry-
Stability of
I) 
II) 
III) 
IV) 
In the increasing order is
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I)
II)
III)
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chemistry-General
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A uniform rod of mass m is bent into the form of a semicircle of radius R. The moment of inertia of the rod about an axis passing through A and perpendicular to the plane of the paper is
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An inverted “V” is made up of two uniform boards each weighing 200 N. Each side has the same length and makes an angle with the vertical as shown in figure. The magnitude of the static frictional force that acts on each of the lower end of the V is
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physics-General
