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The mean of `5 ` observation is `5` and their variance is `12.4`. If three of the observations are `
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A spherical black body with a radius of `12 cm` radiates `450 W` power at `500 K`. If the radius wer
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The equation `e^sinx-e^(-sinx)=4` has
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The figure shows in system consisting of (i) a ring of outer radius `3R` rolling clockwise without s
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An aqueous solution of 6.3 g oxalic acid dihydrate is made up to 250 mL.The volume of 0.1N NaOH requ
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This question has Statement `– 1` and Statement `– 2`. Of the four choices given after the state
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