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PGT PHYSICS

Studied SYSTEM ENGG. at M. TECH. - DEI - AGRA
PGT - PHYSICS at CBSE - SCHOOL - AGRA
Live in Agra,India, Uttar Pradesh
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Mentoring and teaching students of class – X, XI and XII [Science stream] acad...
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PGT PHYSICS
26 May 2020 12:37 AM study24x7 study24x7

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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PGT PHYSICS
26 May 2020 12:36 AM study24x7 study24x7

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.
    Like
    Reply 26 May 2020 07:01 PM
    PGT PHYSICS
    26 May 2020 12:33 AM study24x7 study24x7

    Light year is a unit of :-

    A

    Time

    B

    Mass

    C

    Distance

    D

    Energy

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    PGT PHYSICS
    26 May 2020 12:29 AM study24x7 study24x7

    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

    Class 10
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    PGT PHYSICS
    25 May 2020 10:22 PM study24x7 study24x7

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

    General Introduction-PDF.pdf
    1 Downloads
    Class 10
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  • A k
    • good
    Like 1
    Reply 25 May 2020 10:37 PM
    PGT PHYSICS
    25 May 2020 10:11 PM study24x7 study24x7

    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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    PGT PHYSICS
    25 May 2020 09:57 PM study24x7 study24x7

    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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    PGT PHYSICS
    19 May 2020 06:30 PM study24x7 study24x7

    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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    PGT PHYSICS
    19 May 2020 06:16 PM study24x7 study24x7

    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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    PGT PHYSICS
    19 May 2020 05:27 PM study24x7 study24x7

    PLEASE NOTE :-
    Today at 20:00 hrs I am going to deliver a on-line free webinar on physics topic " Projectile Motion " at all india level for students of K-11, K-12 , K-13, NEET, JEE and NEST aspirants on zoom app. Interested students may send their request to on mobile...

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