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NEET - NEET - Physics
A plane is revolving around the earth with speed of 100km/hr at a constant height from the surface of earth. The change in the velocity as it travels half-circle is: ans is 200km/hr. Please provide me solution for it .
Asked by Tanul2003
18th June 2018,
10:16 PM
NEET - NEET - Physics
A bullet is fired horizontally aiming at an object which starts falling at instant the bullet is fired. show that the bulletvwill hit the object
Asked by nehagoyalarmy
17th June 2018,
2:01 PM
NEET - NEET - Physics
A particle of mass 'm' moving towards the east with speed 'v' collides with another particle of same mass and same speed 'v' moving towards the north. If the two particles stick to each other, the new particle of mass 2m will have a speed of?
Asked by nasir.mirza
13th June 2018,
10:47 PM
NEET - NEET - Physics
A rigid horizontal smooth rod AB of mass 0.75 kg and length 40 cm can rotate freely abput a fixed vertical vertical axis through the midpoint O. Two strings each of mass 1 kg initially at rest are placed at a distance of 10 cm from O on either side of the rod. The rod is set in rotation with an angular velocity of 30 radian per sec and when the rings reach the ends of the rod, the angular velocity in rad/sec is?
Asked by nasir.mirza
13th June 2018,
10:07 PM
NEET - NEET - Physics
Figure shows the variation of energy E with the orbital radius r of a satellite in a circular motion. Mark the correct statement: (a) 'A' shows the kinetic energy, 'B' shows the total energy and 'C' the potential energy of the satellite. (b) 'A' and 'B' are the kinetic energy and potential energy respectively and 'C' the total energy of the satellite. (c) 'A' and 'B' are the potential energy and the kinetic energy respectively and 'C' the total energy of the satellite. (d) 'C' and 'A' are the kinetic and potential energies respectively and 'B' the total energy of the satellite.
Asked by nasir.mirza
13th June 2018,
8:51 PM
NEET - NEET - Physics
Two stars each of mass 'm' and radius 'R' approach each other to collide head-on. Initially the stars are at a distance r(>>R). Assuming their speeds to be negligible at this distance of seperation, the speed with which the stars collide is?
Asked by nasir.mirza
13th June 2018,
8:05 PM
NEET - NEET - Physics
A satellite is in a circular orbit very close to the surface of the planet. At some point it is given an impulse in its direction of motion, causing its velocity to increase 'n' times. It now goes into an elliptical orbit, with the planet at the centre of the ellipse. The maximum possible value of 'n' for this to occur is (a) 2 (b) root of 2 (c) root of 2 + 1 (d) 1/ root of 2 -1
Asked by nasir.mirza
13th June 2018,
7:50 PM
NEET - NEET - Physics
A projectile is fired vertically upward from the surface of earth with a velocity of kvE, where vE is the escape velocity and k<1. Neglecting air resistance, the maximum height to which it will rise, measured from the centre of earth is (R = radius of earth) (a) R/1-k^2 (b) R/k^2 (c) 1-k^2/R (d) k^2/R
Asked by nasir.mirza
13th June 2018,
7:11 PM
NEET - NEET - Physics
If gE and gM are the acceleration due to gravity on the surfaces of the earth and moon respectively and if Millikan's oil drop experiment could be performed on the two surfaces, one will find the ratio electronic charge on the moon/electronic charge on the earth to be?
Asked by nasir.mirza
13th June 2018,
6:34 PM
NEET - NEET - Physics
A uniform sphere of mass M and radius R exerts a force F on a small mass m situated at a distance of 2R from the centre O of the sphere. A spherical portion of diameter R is cut from the sphere as shown in the figure. The force of attraction between the remaining part of the sphere and the mass m is?
Asked by nasir.mirza
13th June 2018,
6:25 PM
Browse free questions and answers by Chapters
- 1 Gravitation
- 2 Motion in a Straight Line
- 3 Motion in a Plane
- 4 Mechanical Properties of Solids
- 5 Mechanical Properties of Fluids
- 6 Thermal Properties of Matter
- 7 Oscillations
- 8 Waves
- 9 Current Electricity
- 10 Electromagnetic Induction
- 11 Alternating Current
- 12 Electromagnetic Waves
- 13 Wave Optics
- 14 Rotational Motion
- 15 Electronic Devices
- 16 Work, Power and Energy
- 17 Forces and Laws of Motion
- 18 Geometrical Optics
- 19 Electric Charges, Forces and Fields
- 20 Electric Potential and Capacitance
- 21 Nuclear Physics and Radioactivity
- 22 Experimental Physics
- 23 Physical World, Units, Dimensions and Error in Measurement
- 24 Moving Charges and Magnetism and Magnetism and Matter
- 25 System of Particles
- 26 Dual Nature of Matter and Radiation and Structure of Atom
- 27 Thermodynamics and Kinetic Theory of Gases
