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151-200

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151-200
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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Principle Of Huygens-Fresnel:

Combines geometric principle of Huygens with ideas about the interference of secondary waves of the Fresnel.

This dispersion of light.

This is a purely geometric principle.

Combines geometric principle of Fresnel's ideas about the interference of secondary waves Huygens.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A body of mass m = 3 kg moves with velocity v= 2 m/s and hits a stationary body of the same weight. The amount of heat liberated in Central and inelastic impact, as well:

1J

4J

3J

0,4J;

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the specific heat of hydrogen at constant pressure.

4,25·104 J/(К·kg)

1,45·104 J/(К·kg)

2,95·104 J/(К·kg)

0,75·104 J/(К·kg)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How to behave in the lines of force of the electrostatic field near the surface of the conductor?

do Not change their direction.

Trace the surface of the conductor.

depending on the magnitude of the field.

Perpendicular to the surface of the conductor.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The refractive index of the substance is equal to 2. Find the speed of light in the substance (с = 3108 m/s)


1,5·108 m/s.

1,2·108 m/s.

1,4·108 m/s.

1,6·108m/s.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the solenoid inductance L = 0,2 Mr flowing current of I = 10A. Determine the energy W of the magnetic field of the solenoid.

8

10

6

4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the number of turns of the coil to reduce 6 times, but retain its dimensions and the current in the coil, the coil inductance:

decreased by 36 times

does not change, because It does not depend on the number of turns

will increase by 36 times

6-fold decrease

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