Physics-
General
Easy
Question
A block of mass m is kept in an elevator which starts moving downward with an acceleration 
as shown in figure. The block is observed by two observers A and B for a time interval 
.According to observer B, the net work done on the block is
The correct answer is:
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A block of mass m is kept in an elevator which starts moving downward with an acceleration as shown in figure. The block is observed by two observers A and B for a time interval .The observer B finds that work done by pseudo force is
A block of mass m is kept in an elevator which starts moving downward with an acceleration as shown in figure. The block is observed by two observers A and B for a time interval .The observer B finds that work done by pseudo force is
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A block of mass m is kept in an elevator which starts moving downward with an acceleration as shown in figure. The block is observed by two observers A and B for a time interval .The observer B finds that work done by normal reaction N is
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If then x =
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In triangle 
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In triangle , If then the triangle is
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A block of mass m is kept in an elevator which starts moving downward with an acceleration as shown in figure. The block is observed by two observers A and B for a time interval .The observer B finds that the work done by gravity is
A block of mass m is kept in an elevator which starts moving downward with an acceleration as shown in figure. The block is observed by two observers A and B for a time interval .The observer B finds that the work done by gravity is
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Two identical beads are attached to free ends of two identical springs of spring constant 
Initially both springs make an angle of 
at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter Choose the correct statement
Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter Choose the correct statement
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Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter The speed of bead when spring is at normal length
Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter The speed of bead when spring is at normal length
physics-General
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Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter Relative acceleration between two beads at the initial moment
Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter Relative acceleration between two beads at the initial moment
physics-General
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Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter. Normal reaction on one of the bead at initial moment due to ring is
Two identical beads are attached to free ends of two identical springs of spring constant Initially both springs make an angle of at the fixed point N. Normal length of each spring is 2R. Where R is the radius of smooth ring over which bead is sliding. Ring is placed on vertical plane and beads are at symmetry with respect to vertical line as diameter. Normal reaction on one of the bead at initial moment due to ring is
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If sec4A = cosec(A – 
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If sec4A = cosec(A – ) where 4A is an acute angle, find the value of A
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right angled a
right angled a
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chemistry-
The reaction, 
Is called
The reaction, Is called
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physics-
Statement - I One end of ideal massless spring is connected to fixed vertical wall and other end to a block of mass m initially at rest on smooth horizontal surface. The spring is initially in natural length. Now a horizontal force F acts on block as shown. Then the maximum extension in spring is equal to maximum compression in spring.
Statement - II To compress or to expand an ideal unstretched spring by equal amount, same work is to done on spring.
Statement - I One end of ideal massless spring is connected to fixed vertical wall and other end to a block of mass m initially at rest on smooth horizontal surface. The spring is initially in natural length. Now a horizontal force F acts on block as shown. Then the maximum extension in spring is equal to maximum compression in spring.
Statement - II To compress or to expand an ideal unstretched spring by equal amount, same work is to done on spring.
physics-General
