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A ray of light enters a rectangular glass slab submerged in water
A ray of light enters a rectangular glass slab submerged in water at an angle of incidence 55°. Does this ray undergo…
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The displacement–time graph of a sound wave produced by a vibrating wire
The displacement–time graph of a sound wave produced by a vibrating wire is shown below. (a) How will you adjust the tension…
Question
A non-uniform kite is hanging freely from the branch of a tree
A non-uniform kite is hanging freely from the branch of a tree as shown. Study the figure and answer the following: (a)…
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Complete the following by choosing the correct answers from the bracket
Complete the following by choosing the correct answers from the bracket: (a) In uniform circular motion the centrifugal force acts …………… [towards…
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The following figure shows a small bar magnet falling freely through a copper ring
The following figure shows a small bar magnet falling freely through a copper ring. For the observer at A, the direction of…
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Each of the substances given below is supplied with same amount of heat
Each of the substances given below is supplied with same amount of heat. Which one will attain the highest temperature? Substance Specific…
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A radioactive element P emits one α-particle and transforms to a new element Q
A radioactive element P emits one α-particle and transforms to a new element Q. What will be the position of the element…
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In the given circuits Y and Z, the resistors, R₁ and R₂, are connected in
In the given circuits Y and Z, the resistors, R₁ and R₂, are connected in : (a) series in both the circuits…
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As the level of water in a tall measuring cylinder kept under running tap rises, the pitch of sound gradually increases
Assertion (A) : As the level of water in a tall measuring cylinder kept under running tap rises, the pitch of sound…
Question
A metal piece of mass 5 g has thermal capacity 2.5 J K⁻¹
A metal piece of mass 5 g has thermal capacity 2.5 J K⁻¹. If the mass of the metal is tripled, then…