Federal Board 2016 Group 1
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When light of wavelength λ is incident on a lens of diameter D.
A converging lens of focal length f is used as a magnifying glass.What is its angular magnification when final image is formed at infinity? Where D
A converging lens of focal length f is used as a magnifying glass.
What is its angular magnification when final image is formed at infinity? Where D
Which of the following expressions does not have the units equal to joule? Where 'P' is the linear momentum and 1m is the mass of the object moving with velocity 'v' .
Which of the following expressions does not have the units equal to joule?
Where "P" is the linear momentum and 1m is the mass of the object moving with velocity "v".
Fv | |
mv2 | |
Fd | |
A stationary sound wave has series of nodes. The wavelength of the sound wave is λ.What is the distance between first and fifth node?
A stationary sound wave has series of nodes.The wavelength of the sound wave is λ.
What is the distance between first and fifth node?
Electric current measured by an ammeter is 0.5 A. Which of the following correctly expresses this result?
Electric current measured by an ammeter is 0.5 A. Which of the following correctly expresses this result?
500 mA | |
500 MA | |
50 mA | |
50 MA |
When two notes of frequencies f1 and f2 are sounded together, beats are produced. If f1 > f2, what will be the period of beats?
When two notes of frequencies "ƒ1" and "ƒ2" are sounded together, beats are produced.
If ƒ1 > ƒ2, what will be the period of beats?
For a mass spring system placed on a smooth horizontal surface oscillating with amplitude xo.At what displacement from the mean position energy it's equal to its elastic potential energy?
For a mass spring system placed on a smooth horizontal surface oscillating with amplitude xo.
At what displacement from the mean position energy it's equal to its elastic potential energy?
What is the length of a simple pendulum whose time period is one second?
What is the length of a simple pendulum whose time period is one second?
0.25 m | |
2.00 m | |
0.50 m | |
0.99 m |
A projectile is thrown with same initial velocity. For which pair of angles its range is equal?
A projectile is thrown with same initial velocity. For which pair of angles its range is equal?
10° , 40° | |
10° , 70° | |
10° , 80° | |
10° , 50° |
What is equal to one kilowatt-hour (1kWh)?
What is equal to one kilowatt-hour (1kWh)?
3.6 mJ | |
3.6 MJ | |
3.6 μJ | |
3.6 kJ |
Which of the following quantities is equal to area under velocity-time graph?
Which of the following quantities is equal to area under velocity-time graph?
Distance | |
Acceleration | |
Power | |
Work done |
A Girl Throws a Ball Vertically Upward with a Velocity of 20 ms-1. Ignore the air resistance, How long will it take to fall back to her hands? (g =10ms-2)
A Girl Throws a Ball Vertically Upward with a Velocity of 20 ms-1. Ignore the air resistance,
How long will it take to fall back to her hands? (g =10ms-2)
6 seconds | |
2 seconds | |
4 seconds | |
3 seconds |
Which of the following pair contains one vector and one scalar quantity?
Which of the following pair contains one vector and one scalar quantity?
Impulse, Torque | |
Impulse, Energy | |
Work, Power | |
Torque, Angular momentum |
Boltzman constant where R is the general gas constant and 'NA 'is Avogadro's number.What is the SI — units of K ?
Boltzman constant where R is the general gas constant and 'NA 'is Avogadro's number.What is the SI — units of K ?
JmolK-1 | |
Jk | |
JK-1 | |
Jmol-1K-1 |
A hoop of mass "m" rolls down an inclined plane of height "h", reaches the bottom with linear velocity v and angular velocity "v" and angular velocity "ω". If friction is ignored,What is the total energy of the hoop at the bottom of inclined plane?
A hoop of mass "m" rolls down an inclined plane of height "h", reaches the bottom with linear velocity "v" and angular velocity "v" and angular velocity "ω".If friction is ignored,
What is the total energy of the hoop at the bottom of inclined plane?
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| |
mv 2 | |
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Two vectors A and B are enclosing an angle 'θ'. For which value of θ, |A x B| = |A B|
Two vectors are enclosing an angle 'θ'. For which value of θ,
?
0° | |
45° | |
90° | |
60° |