Physics-
General
Easy

Question

What will be the nature of change in internal energy in case of processes shown below?

  1. + ve in all cases    
  2. – ve in all cases    
  3. – ve in 1 and 3 and + ve in 2 and 4    
  4. zero in all cases    

The correct answer is: zero in all cases

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Lt subscript x plus x over 2 end subscript space fraction numerator cos begin display style space end style x over denominator x minus pi over 2 end fraction

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Young's modulus of rubber is  10 to the power of 4 straight N over straight m squared and area of cross section is 2 cm2 if force of 2 cross times 10 to the power of 5 dyne is applied along its length then its initial length L becomes….

Young's modulus of rubber is  10 to the power of 4 straight N over straight m squared and area of cross section is 2 cm2 if force of 2 cross times 10 to the power of 5 dyne is applied along its length then its initial length L becomes….

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L t subscript x not stretchy rightwards arrow 1 end subscript fraction numerator log subscript e superscript x over denominator x minus 1 end fraction

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

L t subscript x not stretchy rightwards arrow 1 end subscript fraction numerator log subscript e superscript x over denominator x minus 1 end fraction

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator e to the power of x minus sin space x minus 1 over denominator x end fraction

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means fraction numerator 0 over denominator 0 space end fraction space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction'

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means fraction numerator 0 over denominator 0 space end fraction space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction'

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Lt subscript x not stretchy rightwards arrow 4 end subscript fraction numerator a to the power of x minus 1 over denominator b to the power of x minus 1 end fraction left parenthesis a greater than 0 comma b greater than 0 comma b not equal to 1 right parenthesis

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 or fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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PV versus T graph of equal masses of H subscript 2 end subscript , He and C O subscript 2 end subscript is shown in figure Choose the correct alternative

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If pi less than alpha less than 2 pi then fraction numerator 1 over denominator S i n invisible function application alpha minus square root of c o t to the power of 2 end exponent invisible function application alpha minus c o s to the power of 2 end exponent invisible function application alpha end root end fraction equals

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means fraction numerator 0 over denominator 0 space end fraction space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction .

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means fraction numerator 0 over denominator 0 space end fraction space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction .

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L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator square root of x plus 1 end root minus 1 over denominator x end fraction

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If X equals S i n invisible function application 1 semicolon Y equals S i n invisible function application 2 semicolon Z equals S i n invisible function application 3  then

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Lt subscript x not stretchy rightwards arrow 4 end subscript space fraction numerator square root of x minus 2 over denominator x minus 4 end fraction

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 or fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 or fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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fraction numerator s i n invisible function application 3 theta over denominator 1 plus 2 c o s invisible function application 2 theta end fraction equals

Hence Choice 4 is correct

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Maths-General

Hence Choice 4 is correct

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We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means 0 over 0 or fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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L t subscript x not stretchy rightwards arrow 3 end subscript fraction numerator x cubed minus 6 x squared plus 9 x over denominator x squared minus 9 end fraction

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Maths-General

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means fraction numerator 0 over denominator 0 space end fraction space o r space fraction numerator plus-or-minus infinity over denominator plus-or-minus infinity end fraction.

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The graph shown in the adjacent diagram, represents the variation of temperature T of two bodies x and y having same surface area, with time (t) due to emission of radiation. Find the correct relation between emissive power(E) and absorptive power(a) of the two bodies

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