Recent questions in 12th Science Maharashtra Board

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Using the energy conservation, derive the expressions for the minimum speeds at different locations along a

asked May 18, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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1 answer 2.8k views

While driving along an unbanked circular road, a two-wheeler rider has to lean with the vertical.

asked May 18, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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1 answer 1.9k views

Why is it useful to define radius of gyration?

asked May 18, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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What are diamagnetic substances?

asked May 15, 2021 in Chemistry by Doubtly (98.9k points)

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Name the bravais lattice in the triclinic system

asked May 15, 2021 in Chemistry by Doubtly (98.9k points)

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Write the effect on density of a substance in the Frenkel defect?

asked May 15, 2021 in Chemistry by Doubtly (98.9k points)

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Explain with diagram the boiling point elevation in terms of vapour pressure lowering ?

asked Apr 14, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 317 views

What is osmotic pressure ? Chemistry 12th

asked Apr 14, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 369 views

A gas contained in a cylinder fitted with a frictionless piston expands against a constant external pressure of 1 atm

asked Apr 13, 2021 in Chapter1:Rotational Dynamics by anonymous

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If A and B are two skew-symmetric matrices of order n, then, (a) AB is a skew-symmetric matrix

asked Apr 12, 2021 in Chapter1:Rotational Dynamics by Topper11 (2.8k points)

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1 answer 3.0k views

[MCQ ] Molecular solids are __________ crystalline solids amorphous solids

asked Apr 10, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 13.0k views

Niobium forms bcc structure the density of niobium is 8.55 g/cm3 and length of unit cell edge

asked Apr 10, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 548 views

Alluminium crystallizes in cubic close packed structure with unit cell edge 353.6 pm

asked Apr 10, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 5.2k views

The density of iridium is 22.4 g/cm3 . The unit cell of iridium is fcc. Calculate the radius of iridium atom. Molar mass of iridium is 192.2 g/mol.

asked Apr 10, 2021 in Chapter1:Rotational Dynamics by anonymous

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1 answer 1.4k views

Draw the energy band diagram when intrinsic semiconductor (Ge) is doped with impurity atoms of Antimony (Sb).

asked Apr 4, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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1 answer 627 views

A gas contained in a cylinder fitted with a frictionless piston expands against a constant external pressure of 1 atm from

asked Mar 28, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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1 answer 1.2k views

A resistor held in running water carries electric current. Treat the resistor as the system

asked Mar 28, 2021 in Chapter1:Rotational Dynamics by Topper11 (2.8k points)

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1 answer 347 views

State and explain the first law of thermodynamics

asked Mar 28, 2021 in Chapter1:Rotational Dynamics by Topper11 (2.8k points)

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1 answer 478 views

At what temperature will the rms speed of air molecules be double that NTP?

asked Mar 28, 2021 in Chapter1:Rotational Dynamics by Topper11 (2.8k points)

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1 answer 321 views

If z1, z2 are complex numbers such that, 2z13z12z13z1is purely imaginary number, then finds |z1−z2z1+z2z1−z2z1+z2 |

asked Mar 27, 2021 in Chapter1:Rotational Dynamics by Doubtly (98.9k points)

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