MDCAT Physics Online Test

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MDCAT Physics Online Test

  • Total Questions40

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MDCAT Physics Online Test

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Question # 1

Carnot cycle is:

Question # 2

A stone attached to one end of a string is revolved around a stick so that the string winds on the stick and gets shortened) What is conserved)

Question # 3

The angular analogue of linear displacement is called

Question # 4

A light and a heavy body have equal momenta. Which one has greater K.E?

Question # 5

A particular wavelength received from a galaxy is measured on earth and isfound to be 5% more than that its wave length on earth. Hence galaxy is

Question # 6

The wavelength of light observed on the earth, form a moving star is found todecrease by 0.05%. Relative to the earth the star is

Question # 7

During a negative β-decay

Question # 8

The time of flight of a projectile is maximum when angle of projection is:

Question # 9

Light elements do not emit X-rays because

Question # 10

If the tension in a string stretched between two fixed points is made four times, the frequency of the fundamental harmonic will become:

Question # 11

Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment of about the same size. This process is accompanied by the emission of several:

Question # 12

Between the plates of a parallel plate condenser there is 1mm thick paper of dielectric constant 4. Itis charged at 100 volt. The electric field in volt/meter between the plates of the capacitor is:

Question # 13

A proton and an 𝑎 − 𝒑𝒂𝒓𝒕𝒊𝒄𝒍𝒆 are accelerated through same voltage, the ratio of their de- Broglie wavelength will be:

Question # 14

A sonar depth finder in a boat uses sound signals to determine the depth of water. Fourseconds after the sound leaves the boat it returns to the boat because of reflection fromthe bottom. Assume the speed of sound in water is 1,460 meters per second. The depth of the water is, in meters, :

Question # 15

The ‘emf ’ is always even when no current is drawn through the battery of the cell:

Question # 16

A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the same mass to the same height in 60 sec. The work done by them are in the ratio

Question # 17

The potential difference between head and tail of an "electric eel" can be upto.

Question # 18

Beta particles have penetration of about:

Question # 19

A rigid uniform bar of length 2.4 m is pivoted horizontally at its mid-point, weights are hung from two points of the bar as shown in diagram. To maintain horizontal equilibrium, a couple is applied to the bar: What is the torque and the direction of couple?

Question # 20

A stone of mass 0.5kg tied with a string of length 1m is moving in a horizontal circle with a speed of 4ms-1 . The tension acting on the string in newton is:

Question # 21

What will be the number of photons emitted per second by 25 W source of monochromatic light of wavelength 600 nm:

Question # 22

There are two electric bulbs of 40 W and 100 W. They are first connected in series and then in parallel across a source:

Question # 23

In uniform circular motion, the factor that remains constant is:

Question # 24

The unit of work function is

Question # 25

In full wave rectification, the output DC voltage across the load is obtained for.

Question # 26

In photoelectric effect experiment, stopping potential depend upon

Question # 27

To find longest wavelength radiation in Ballmer series, the value of n used is:

Question # 28

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms1 The KE of other mass is

Question # 29

In photoelectric effect, electrons are emitted:

Question # 30

A person weighing 20 mg walks on a level platform with a speed of 2 ms-1 . The work by the person against the force of gravity is:

Question # 31

Moving photons posses:

Question # 32

The junction potential for Germanium is;

Question # 33

The relative permittivity of air is

Question # 34

A pure semiconductor has:

Question # 35

The work done to keep the satellite in the given orbit is.

Question # 36

A charged conductor has charged on its:

Question # 37

The radius of orbit of a geostationary satellite depends upon:

Question # 38

The geostationary satellite is:

Question # 39

A count rate 240 per minute reduces to 30 counts per min in 1 hour. The half-life of source is:

Question # 40

The mud flies off the tyre of a fast moving car in the direction

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