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Day 473: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Semiconductor Electronics. Asked once: 4 Apr 2026 S1

    13
    Two 4 bits binary numbers, A=1101A = 1101 and B=1010B = 1010 are given in the inputs of a logic circuit shown in figure below. The output (Y) will be :

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  2. Question 2

    System of Particles and Rotational Motion. Asked once: 28 Jan 2026 S2

    12
    When the position vector r→=xi^+yj^+zk\overrightarrow{r}= x\widehat{i}+ y\widehat{j}+ zk changes sign as −r→-\overrightarrow{r}, which one of the following vector will not flip under sign change ?

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  3. Question 3

    Thermal Properties of Matter. Asked once: 27 Jul 2022

    8
    Read the following statements: A. When small temperature difference between a liquid and its surrounding is doubled the rate of loss of heat of the liquid becomes twice. B. Two bodies PP and QQ having equal surface areas are maintained at temperature 10∘C10^{\circ}C and 20∘C20^{\circ}C. The thermal radiation emitted in a given time by PP and QQ are in the ratio 1:1.151:1.15 C. A carnot Engine working between 100 K100\text{ }K and 400 K400\text{ }K has an efficiency of 75%75\% D. When small temperature difference between a liquid and its surrounding is quadrupled, the rate of loss of heat of the liquid becomes twice. Choose the correct answer from the options given below:

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  4. Question 4

    Thermodynamics. Asked once: 3 Apr 2025

    1
    During the melting of a slab of ice at 273 K at atmospheric pressure :

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  5. Question 5

    Units and Measurements. Asked once: 4 Apr 2025

    95
    In an electromagnetic system, a quantity defined as the ratio of electric dipole moment and magnetic dipole moment has dimension of [MPLQTRAS]\left\lbrack M^{P}L^{Q}T^{R}A^{S} \right\rbrack. The value of PP and QQ are :

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