Find out the angle of projection, if range is 4 times of maximum height
Find out the angle of projection, if range is 4 times of maximum height
Options
(a) 60⁰ (b) 45⁰ (c) 30⁰ (d) 75⁰
Correct Answer:
45⁰
Explanation:
R=4H 2 u² sin θ cos θ/g […]
Physics
The horizontal range of a projectile is 4√3 times the maximum height achieved
The horizontal range of a projectile is 4√3 times the maximum height achieved by it. The angle of projection is
Options
(a) 30⁰ (b) 45⁰ (c) 60⁰ (d) 90⁰
Correct Answer:
30⁰
Explanation:
u²sin […]
A thermocouple is made from two metals, antimony and bismuth. If one junction
A thermocouple is made from two metals, antimony and bismuth. If one junction on the couple is kept hot and the other is kept cold then, an electric current will
Options
(a) flow […]
In producing chlorine through electrolysis 100 watt power at 1125 V is being
In producing chlorine through electrolysis 100 watt power at 1125 V is being consumed. How much chlorine per minute is liberated? E.C.E. of chlorine is 0.367×10⁻⁶kg/coulomb
Options
(a) 13.6 mg (b) 17.6 mg […]
“On flowing current in a conducting wire the magnetic field is produced around it”.
“On flowing current in a conducting wire the magnetic field is produced around it”. It is a law given by
Options
(a) Lenz (b) Ampere (c) Ohm (d) Maxwell
Correct Answer:
Ampere
Explanation: […]
A body of mass 2 kg is moved by a force F=3x where x is the distance covered.
A body of mass 2 kg is moved by a force F=3x where x is the distance covered. Initial position is x=2 m and the final position is x=10 m. The initial speed is zero. […]
On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck is moving with acceleration 5 ms⁻². The frictional force on block will be
Options
(a) […]
For a satellite moving in an orbit around the earth, the ratio of kinetic
For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is
Options
(a) (1/2) (b) 1/√2 (c) 2 (d) √2
Correct Answer:
(1/2)
Explanation:
-GMm/R² […]
A body of weight W newton is at the surface of the earth.
A body of weight W newton is at the surface of the earth. Its weight at a height equal to half the radius of the earth will be
Options
(a) W/2 (b) 2W/3 […]
4 point charges each +q is placed on the circumference of a circle
4 point charges each +q is placed on the circumference of a circle of diameter 2d in such a way that they form a square. The potential at the centre is
Options
(a) […]