PGT PHYSICS - Study24x7

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PGT PHYSICS
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PGT PHYSICS

Studied SYSTEM ENGG. at M. TECH. - DEI - AGRA
PGT - PHYSICS at CBSE - SCHOOL - AGRA
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Mentoring and teaching students of class – X, XI and XII [Science stream] acad...
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26 May 2020 12:37 AM

Following quantities are neither vectors nor scalars : Relative density, density, viscosity, frequency, pressure, stress, strain, modulus of elasticity, poisson’s ratio, moment of inertia, specific heat, latent heat, spring constant loudness, resistance, conductance, reactance,...

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26 May 2020 12:36 AM

A quantity having magnitude and direction is not necessarily a vector. For example, time and electric current. These quantities have magnitude and direction but they are scalar. This is because they do not obey the laws of vector addition.

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• Shahbaz Shahbaz
• Hello Sir I guess vector law of algebra is more appropriate.
26 May 2020 12:33 AM

Light year is a unit of :-

A

Time

B

Mass

C

Distance

D

Energy

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26 May 2020 12:29 AM

A hall has the dimensions 10m x 12m x 14 m. A fly starting at one corner ends up at a diametrically opposite corner. What is the magnitude of its displacement

A

17 M

B

26 M

C

36 M

D

21 M

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25 May 2020 10:22 PM

General Introduction to Physics - For class IX - ICSE - Board students Only.1. Examination Pattern.
2. Detailed Syllabus
3. Practical Assessment.

General Introduction-PDF.pdf
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• A k
• good
25 May 2020 10:11 PM

What should be the aim behind study of Physics. ?

[a] To acquire knowledge and understanding of the terms, facts, concepts, definitions, laws, principles and processes of Physics.

[b] To develop skills in practical aspects of handling apparatus, recording obs...

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25 May 2020 09:57 PM

In olden days, electricity and magnetism were treated as separate subjects. Electricity dealt with charges on glass rods, cat’s fur, batteries, lightning, etc., while magnetism described interactions of magnets, iron filings, compass needles, etc. In 1820 Danish scientist Oerst...

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19 May 2020 06:30 PM

Two cells of equal e.m.f. and of internal resistances R1 and R2 { R2 > R1} are connected in series. On connecting this combination to an external resistance R, it is observed that the potential difference across the first cell becomes zero. The value of R will be

A

R1 + R2

B

R1 - R2

C

(R1 + R2)/2

D

(R1 - R2)/2

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19 May 2020 06:16 PM

If a 0.1 % increase in length due to stretching, the percentage increase in its resistance will be

A

0.2%

B

2%

C

1%

D

0.1%

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19 May 2020 05:27 PM