Physics-
General
Easy
Question
A wire of 
passes over a frictionless light pulley fixed on the top of a frictionless inclined plane which makes an angle of 30° with the horizontal. Masses m and M are tied at the two ends of wire such that m rests on the plane and M hangs freely vertically downwards. The entire system is in equilibrium and a transverse wave propagates along the wire with a velocity of 100 ms–1. Chose the correct option
The correct answer is:
Related Questions to study
Physics-
A train has just complicated a U-curve in a track which is a semicircle. The engine is at the forward end of the semi circular part of the track while the last carriage is at the rear end of the semicircular track. The driver blows a whistle of frequency 200 Hz. Velocity of sound is 340 m/sec. Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is 30 m/sec is
A train has just complicated a U-curve in a track which is a semicircle. The engine is at the forward end of the semi circular part of the track while the last carriage is at the rear end of the semicircular track. The driver blows a whistle of frequency 200 Hz. Velocity of sound is 340 m/sec. Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is 30 m/sec is
Physics-General
Physics-
A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P to Q is 
A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P to Q is
Physics-General
Physics-
Figure below shows a body of mass M moving with the uniform speed on a circular path of radius, R. What is the change in acceleration in going from 
to 
Figure below shows a body of mass M moving with the uniform speed on a circular path of radius, R. What is the change in acceleration in going from to
Physics-General
Physics-
A metal sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The forces acting on the sphere are shown in the second diagram. Which of the following statements is wrong
A metal sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The forces acting on the sphere are shown in the second diagram. Which of the following statements is wrong
Physics-General
Physics-
Figure shows ABCDEF as a regular hexagon. What is the value of 
Figure shows ABCDEF as a regular hexagon. What is the value of
Physics-General
Physics-
Find the resultant of three vectors 
and 
shown in the following figure. Radius of the circle is R.
Find the resultant of three vectors and shown in the following figure. Radius of the circle is R.
Physics-General
Chemistry-
of KOH solution was titrated with 0.20 M 
solution in a conductivity cell. The data obtained were plotted to give the graph shown below
The concentration of the KOH solution was
of KOH solution was titrated with 0.20 M solution in a conductivity cell. The data obtained were plotted to give the graph shown below
The concentration of the KOH solution was
Chemistry-General
Chemistry-
Following experiment has been given to identify isomer. Read the Experiment and answer the questions
A compound
has been prepared in a number of isomeric forms. One form undergoes no reaction with 
or (en) and is optically inactive .A second form reacts with but not with (en) and is optically active and reacts with both and (en), complexes are
First form of the complex is
Following experiment has been given to identify isomer. Read the Experiment and answer the questions
A compound has been prepared in a number of isomeric forms. One form undergoes no reaction with or (en) and is optically inactive .A second form reacts with but not with (en) and is optically active and reacts with both and (en), complexes are
First form of the complex is
Chemistry-General
Chemistry-
Tautomerism is the phenomenon in which two structural isomers differing in the relative positions of their atoms are spontaneously interconvertable and can exist in dynamic equilibrium. The two forms in tautomeric equilibrium are called tautomers of each other. The interconvertibility of tautomers is a chemical reaction which involves making and braking of bonds. Tautomers are true isomers, and either of the individual tautomeric forms may be isolated
In the keto-enoltautomerism of dicarbonyl compounds the enol form is preferred in contrast to the keto form, this is due to
Tautomerism is the phenomenon in which two structural isomers differing in the relative positions of their atoms are spontaneously interconvertable and can exist in dynamic equilibrium. The two forms in tautomeric equilibrium are called tautomers of each other. The interconvertibility of tautomers is a chemical reaction which involves making and braking of bonds. Tautomers are true isomers, and either of the individual tautomeric forms may be isolated
In the keto-enoltautomerism of dicarbonyl compounds the enol form is preferred in contrast to the keto form, this is due to
Chemistry-General
Physics-
In LR circuit (shown in figure), current is lagging by 
in phase with applied voltage, then select correct alternative :
In LR circuit (shown in figure), current is lagging by in phase with applied voltage, then select correct alternative :
Physics-General
Physics-
A metal rod of length, moving with an angular velocity v and velocity of its centre is v. Find potential difference between points A and B at the instants how n in figure. A uniform magnetic field of strength B exist perpendicular
to plane of paper :
A metal rod of length, moving with an angular velocity v and velocity of its centre is v. Find potential difference between points A and B at the instants how n in figure. A uniform magnetic field of strength B exist perpendicular
to plane of paper :
Physics-General
Physics-
Particle sticks to wooden loop, If particle reach at the lowest position for first time after time T. Then displacement of centre of mass of system in this time interval will be :
Particle sticks to wooden loop, If particle reach at the lowest position for first time after time T. Then displacement of centre of mass of system in this time interval will be :
Physics-General
Physics-
One end of a light rod of length 1 m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical circle is (g = 10 m/s2 )
One end of a light rod of length 1 m is attached with a string of length 1m. Other end of the rod is attached at point O such that rod can move in a vertical circle. Other end of the string is attached with a block of mass 2kg. The minimum velocity that must be given to the block in horizontal direction so that it can complete the vertical circle is (g = 10 m/s2 )
Physics-General
Physics-
Three point masses are attached by light inextensible strings of various lengths to a point O on the ceiling. All of the masses swing round in horizontal circles of various radii with the same angular frequency w (one such circle is drawn in the shown figure.) Then pick up the correct statement.
Three point masses are attached by light inextensible strings of various lengths to a point O on the ceiling. All of the masses swing round in horizontal circles of various radii with the same angular frequency w (one such circle is drawn in the shown figure.) Then pick up the correct statement.
Physics-General
Physics-
Two blocks of mass m1 and m2 (m1 < m2 ) are connected with an ideal spring on a smooth horizontal surface as shown in figure. At t = 0 m1 is at rest and m2 is given a velocity v towards right. At this moment, spring is in its natural length. Then choose the correct alternative :
Two blocks of mass m1 and m2 (m1 < m2 ) are connected with an ideal spring on a smooth horizontal surface as shown in figure. At t = 0 m1 is at rest and m2 is given a velocity v towards right. At this moment, spring is in its natural length. Then choose the correct alternative :
Physics-General
