Physics-
General
Easy
Question
A projectile is fired from the surface of level ground at an angle f0 above the horizontal. Then elevation angle tan is
The correct answer is:
H = Maximum height
R = Maximum range
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Physics-
A particle is projected from the ground with an initial speed of v at an angle with horizontal. The average velocity of the particle between its point of projection and highest point of trajectory is
A particle is projected from the ground with an initial speed of v at an angle with horizontal. The average velocity of the particle between its point of projection and highest point of trajectory is
Physics-General
Physics-
The resultant of velocity of two cars moving with equal speeds, Ratio of magnitude , when the direction of either car is reversed. The angle between the direction of cars is
The resultant of velocity of two cars moving with equal speeds, Ratio of magnitude , when the direction of either car is reversed. The angle between the direction of cars is
Physics-General
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The displacement of a particle moving in one dimension is given by where is in meter and in second. The displacement, when the velocity is zero is
The displacement of a particle moving in one dimension is given by where is in meter and in second. The displacement, when the velocity is zero is
Physics-General
Physics-
A car starts moving with constant acceleration covers the distance between two points 180 meters apart in 6 seconds. Its speed as it passes the second point is 45 m/s. Find its speed when it was at the first point.
A car starts moving with constant acceleration covers the distance between two points 180 meters apart in 6 seconds. Its speed as it passes the second point is 45 m/s. Find its speed when it was at the first point.
Physics-General
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A particle moves along a parabolic path y = 9x2 in such a way that the x component of velocity remain constant and has a value . The acceleration of the particle is
A particle moves along a parabolic path y = 9x2 in such a way that the x component of velocity remain constant and has a value . The acceleration of the particle is
Physics-General
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Which of the following four statements is false
Which of the following four statements is false
Physics-General
Physics-
The motion of a body is given by the equation Where at time t is in ms–1 and t is in seconds. If the body was at rest at t = 0, test the correctness of the following results are. The terminal speed is
The motion of a body is given by the equation Where at time t is in ms–1 and t is in seconds. If the body was at rest at t = 0, test the correctness of the following results are. The terminal speed is
Physics-General
Physics-
In the relation x = 3yz2, x and z represent the dimensions of capacitance and magnetic induction respectively. What will be the dimension of y
In the relation x = 3yz2, x and z represent the dimensions of capacitance and magnetic induction respectively. What will be the dimension of y
Physics-General
Physics-
The dimensions of capacitance are
The dimensions of capacitance are
Physics-General
Physics-
If the size of a unit be represented by k and is numerical value as n, then
If the size of a unit be represented by k and is numerical value as n, then
Physics-General
Physics-
Two long parallel copper wires carrying currents in the opposite direction of 5A each. If the wires are separated by a distance of 0.5m then the force between the two wires is:
Two long parallel copper wires carrying currents in the opposite direction of 5A each. If the wires are separated by a distance of 0.5m then the force between the two wires is:
Physics-General
Physics-
Force applied on the semicircle wire of radius r due to current
Force applied on the semicircle wire of radius r due to current
Physics-General
Chemistry-
can be oxidised to by
can be oxidised to by
Chemistry-General
Chemistry-
The organic compound which will answer the Fehling solution test is
The organic compound which will answer the Fehling solution test is
Chemistry-General
Chemistry-
The reagent(s) which can be used to distinguish acetophenone from benzophenone is (are)
The reagent(s) which can be used to distinguish acetophenone from benzophenone is (are)
Chemistry-General