HSC Science (General) 11th Standard - Maharashtra State Board Question Bank Solutions

Solve the following problem.

A blacksmith fixes iron ring on the rim of the wooden wheel of a bullock cart. The diameter of the wooden rim and the iron ring are 1.5 m and 1.47 m respectively at room temperature of 27 °C. To what temperature the iron ring should be heated so that it can fit the rim of the wheel? (α_iron = 1.2 × 10^–5K^–1).

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The horizontal and vertical component of magnetic field of Earth are same at someplace on the surface of Earth. The magnetic dip angle at this place will be

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A place where the vertical components of Earth's magnetic field is zero has the angle of dip equal to

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A place where the horizontal component of Earth's magnetic field is zero lies at

What is a geographic meridian?

Answer the following question in detail.

How does the magnetic declination vary with latitude? Where is it minimum?

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Define the Angle of Dip.

What happens to the angle of dip as we move towards magnetic pole from magnetic equator?

Solve the following problem.

A magnet makes an angle of 45° with the horizontal in a plane making an angle of 30° with the magnetic meridian. Find the true value of the dip angle at the place.

[L¹M¹T^-2] is the dimensional formula for ______.

Dimensions of kinetic energy are the same as that of ______.

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Are there any situations in which we cannot apply Newton’s laws of motion? Is there any alternative for it?

Distinguish between inertial and non-inertial frames of reference.

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Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in

A spherical marble, of refractive index 1.5 and curvature 1.5 cm, contains a tiny air bubble at its centre. Where will it appear when seen from outside?

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Select the WRONG statement.

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Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.

Which of the following is not involved in formation of a rainbow?

Explain ‘mirage’ as an illustration of refraction.

Answer the following question.

Under what conditions are total internal reflection possible? Explain it with a suitable example.