Physics-
General
Easy
Question
The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is
The correct answer is:
Related Questions to study
Physics-
If the radius of curvature of the path of two particles of same masses are in the ratio 
, then in order to have constant centripetal force, their velocity, should be in the ratio of
If the radius of curvature of the path of two particles of same masses are in the ratio , then in order to have constant centripetal force, their velocity, should be in the ratio of
Physics-General
Maths-
A, B, C, D, E are five coplanar points, then 
is equal to
A, B, C, D, E are five coplanar points, then is equal to
Maths-General
Maths-
If 
and 
, then the unit vector along 
will be
If and , then the unit vector along will be
Maths-General
Maths-
The position vectors of P and Q are 
and
respectively. If the distance between them is 7, then the value of a will be
The position vectors of P and Q are andrespectively. If the distance between them is 7, then the value of a will be
Maths-General
Maths-
The position vectors of two points A and B are 
and 
respectively. Then 
The position vectors of two points A and B are and respectively. Then
Maths-General
Maths-
Let |
| = 1, |
| = 2, |
| = 3 and (+), (+), (+) then |+ + | =
Let || = 1, || = 2, || = 3 and (+), (+), (+) then |+ + | =
Maths-General
Maths-
The locus of a point equidistant from two points A () & B () is-
The locus of a point equidistant from two points A () & B () is-
Maths-General
Maths-
The value of |×
|2 + | ×
|2 + |×
|2 =
The value of |×|2 + | × |2 + |×|2 =
Maths-General
Physics-
The resistance in the following circuit is increased at a particular instant. At this instant the value of resistance is 
. The current in the circuit will be
The resistance in the following circuit is increased at a particular instant. At this instant the value of resistance is . The current in the circuit will be
Physics-General
Physics-General
Physics-
The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux
linked with the primary coil is given by 
where 
is in weber, 
is time in second and 
is a constant, the output voltage across the secondary coil is
The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic fluxlinked with the primary coil is given by where is in weber, is time in second and is a constant, the output voltage across the secondary coil is
Physics-General
Physics-
The mutual inductance between two coils is 
. If the current in the primary changes at the rate of 
, then the induced e.m.f. in the secondary is
The mutual inductance between two coils is . If the current in the primary changes at the rate of , then the induced e.m.f. in the secondary is
Physics-General
Physics-
An ideal coil of 
is joined in series with a resistance of 
and a battery of 
. 2 second after joining, the current flowing in 
in the circuit will be
An ideal coil of is joined in series with a resistance of and a battery of . 2 second after joining, the current flowing in in the circuit will be
Physics-General
Physics-
A transformer is used to
A transformer is used to
Physics-General
Physics-
Two coils of self inductances
and 
are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coil is
Two coils of self inductances and are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coil is
Physics-General
Physics-
Magnetic flux of 
is linked with a coil, when a current of 2 mA flows through through it. What is the self inductance of the coil?
Magnetic flux of is linked with a coil, when a current of 2 mA flows through through it. What is the self inductance of the coil?
Physics-General
