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Physics-

General

Easy

Question

From the graph shown, the value of Work function if the stopping potential (V), and frequency of the incident light, v, are on y and x- axes respectively is

1eV
2eV
4eV
3eV

The correct answer is: 3eV

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Percentage of mass lost during the fission of ₉₂U²³⁵ approximately is

Percentage of mass lost during the fission of ₉₂U²³⁵ approximately is

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Two nucleons are at a separation of $1 cross times 10 to the power of negative 15 end exponent straight m$ The net force between them is F₁ if both are neutrons, if both are protons and $straight F subscript 3$ if one is a proton and other is a neutron In such a case

Two nucleons are at a separation of $1 cross times 10 to the power of negative 15 end exponent straight m$ The net force between them is F₁ if both are neutrons, if both are protons and $straight F subscript 3$ if one is a proton and other is a neutron In such a case

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Average binding energy per nucleon over a wide range is

Average binding energy per nucleon over a wide range is

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If $f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign center center columnspacing 1em end attributes row cell fraction numerator tan x right square bracket over denominator left square bracket x right square bracket end fraction comma end cell cell left square bracket x right square bracket not equal to 0 end cell row cell 0 comma end cell cell left square bracket x right square bracket equals 0 end cell end table close$ , where [ ] = GIF, than

If $f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign center center columnspacing 1em end attributes row cell fraction numerator tan x right square bracket over denominator left square bracket x right square bracket end fraction comma end cell cell left square bracket x right square bracket not equal to 0 end cell row cell 0 comma end cell cell left square bracket x right square bracket equals 0 end cell end table close$ , where [ ] = GIF, than

If $f left parenthesis x right parenthesis equals left parenthesis 1 plus left square bracket x right square bracket right parenthesis to the power of fraction numerator 1 over denominator x minus left curly bracket x right curly bracket end fraction end exponent$ where $left square bracket x right square bracket$ and $open curly brackets x close curly brackets$ denote the integral part and fractional part of $x$ respectively and $a equals Lim subscript x not stretchy rightwards arrow 0 to the power of minus end subscript f left parenthesis x right parenthesis comma b equals Lim subscript x not stretchy rightwards arrow 0 to the power of plus end subscript f left parenthesis x right parenthesis comma c equals Lim subscript x not stretchy rightwards arrow 0 end subscript f left parenthesis x right parenthesis$ then

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$I f space a equals fraction numerator left parenthesis 25 minus x squared right parenthesis space over denominator 16 end fraction$ and log $fraction numerator open parentheses 24 minus 2 x minus x squared close parentheses over denominator 14 end fraction greater than 1$ then $x element of$

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This reaction is called

This reaction is called

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The action of halogen acids on an ether, has the following order of reactivity:

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If the boiling point of ethanol (molecular weight=46) is 78 $℃$ , what is the boiling point of diethyl ether?
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