# ICSE X/ICSE X Physics MCQ Question Answer Sample Test,Sample questions

## Question: ` Identify in which of the cases rotational equibilirium can be allained .`

1.Beam balane

2.See saw

3.balancing origami art work

4.All of the above

## Question: ` If such a lens is dipped in benzene having less refractive index than glass.`

1.The focal length would increase

2.The focal length is decrease

3.The focal length would be infinite

4.The focal length would be zero

## Question: ``` Minimum deviation position is possible in ```

1.Isosceles right-angled prism

2.Equiangular prism

3.Equilateral prism

4.all of the above

1.positive

2.negative

3.zero

4.None of these

1.36kW-h

2.0.278 kW-h

3.746 kW-h

4.36kW-h

1.0J

2.10J

3.100J

4.1000J

1.μ1> μ2

2.μ1=μ2

3.μ<μ

4.μ1 = 1 / μ2

## Question: ```Aman reaches the 26th floor by using an elevator while a lady climbs up a flight of stairs to reach the 26th floor as shown in the figure```

1.Both possess same gravitational potential energy on the 26th floor

2.Both possess the same total energy at any instant of time

3.Both 1 and 2

4.Can't say

## Question: `Choose the correct statement with respect to Total Internal Reflection.`

1.The ray of light travels at an angle greater than critical angle.

2.The ray of light travels from denser medium to rarer medium.

3.The ray of light travels from denser medium to rarer medium

4.Both 1 and 2

## Question: `For an ideal echo to occur the medium must be`

1.Elastic

2.Inertial

3.Frictionless

4.all of the above

## Question: `How is this mechanical unit related to the Sl unit of power?`

1.1HP -756 W

2.1H.P 764 W

3.1HP-746W

4.None of the above

1.8

2.16

3.20

4.14

## Question: `Identify the position of the object when a lens exhibits the following characteristics of image: real, inverted and same size `

1.At F

2.At O

3.At 2F

4.Between F and 2F

## Question: `If this lens is covered with moisture in the surrounding air,`

1. The focal length would be halved

2.The focal length is doubled

3.The focal length would be affected

4.The focal length is 1/2 th.

## Question: ```In the diagram below the phenomenon occurring is ```

1.refraction of stars

2.twinkling of stars

3.dispersion of light

4.total internal reflection

1.kW

2.watt

3.horsepower

4.Tesla

## Question: ```Pravin and Rajesh each having mass of 45 kg reach the fourth floor of a building in time 4 sec and 5 sec respectively The ratio of their power consumed is :```

1.4:5

2.5:4

3.1:1

4.Information is incomplete.

## Question: `Select the correct reason for the cause that is responsible for mirage in deserts`

1.It has a low critical angle

2.Due to total internal reflection.

3.Due to total internal reflection followed by successive retraction of light.

4.Due to diffraction

## Question: `Single fixed pulley helps us as`

1.force multiplier

2.Torque multiplier

3.to achieve convenience of direction of force applied

4.none of the above

## Question: `State which of the following statements are true.`

1.Efficiency of an ideal machine is equal to one

2.Efficiency of a practical machine is less than one

3.Efficiency is always expressed in fraction

4.both 1 and 2

## Question: ```The diagram below shows a spherical lens worn by an old man in which the image obtained is highly magnified and has a power of +2.0D. With reference to this answer the following questions: The spherical lens used is```

1.convex

2.convexo concave

3.concave

4. plano convex

1.15cm

2.50 cm

3.12.5cm

4.25cm

## Question: `The energy change taking place in the following appliance is`

1.Electrical to sound energy

2.Electrical to heat energy

3.Electrical to light energy

4.none of the above

## Question: `The energy transformation taking place in appliance shown below is`

1.Mechanical energy to electrical energy

2.electrical energy to mechanical energy

3.Mechanical kinetic rotational energy to electrical energy

4.Electrical energy to Mechanical kinetic rotational energy

1.100cm

2.25cm

3.0.25m

4.50cm

## Question: ```The measure of angular deviation for a particular colour of light while passing through a glass prism---------- with increase in wavelength```

1.increases

2.decreases

3.remains same

4.none of the above

## Question: `The phenomenon of faces of person appear to shimmer when sitting near a campfire because of`

1.refraction through different layers of optical density

2.wind blowing near the camp fire

3.total internal reflection

4.dispersion of light

## Question: `The relation between angle of prism and minimum angular deviation is`

1.angle of prism = angle of deviation

2.angle of prism is twice angle of deviation

3.angle of prism = 2 [angle of incidence]-angle of minimum deviation

4.angle of prism is half the angle of deviation

## Question: `The relationship to evaluate the velocity ratio is`

1.velocity of effort/ velocity of load

2.displacement of effort/ displacement of load

4.all of the above

## Question: `The spherical lens used is`

1.convex

2.Convexo concave

3.concave

4.plano convex

## Question: `The type of lens is`

1.diverging

2.converging

3.neither converging

4.both converging and diverging

## Question: `What type of unit is it?`

1.Mechanical unit

2.SI unit

3.CGS unit

4.FPS unit

## More MCQS

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