S.I. unit of temperature is -
(A) Kelvin
(B)Celsius
(C) Both
(D) None
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A dimensionless quantity (a) never has a unit, (b) always has a unit, (c) may have a unit, (d) does not exist.
(c) may have a unit, Explanation: Dimensionless quantities may have units.
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Let A be a unit vector along the axis of rotation of a purely rotating body and g be a unit vector
(c) 0. Explanation: The directions of A and B will be perpendicular to each other. Hence A.B = |A|.|B|.Cos90° =0.
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Express the following in SI unit base unit using power of notation : (a) 1.35 mm (b) 1 day (C) 6.45 ml
(a) 1.35mm =1.35 × 10-3 m (b) 1 day = 0.1 × 101 day (c) 6.45 ml = 6.45× 10 -3 L
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The normal temperature of human on Kelvin scale is (a) 280 (b) 290 (c) 300 (d) 310
(d) Normal body temperature of human is 37° C. But when we convert 37° C into Kelvin it becomes 310 K because 0° C = 0°C + 273 = 273...
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The boiling point of alcohol is 780C. What will be the temperature in Kelvin scale?
(B) The temperature in Kelvin scale is 351K.
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When the price of goods rises from Rs.10 per unit to Rs.12 per unit, its quantity demanded falls by 20 percent.
Given. Percentage fall in demand = 20 Initial Price= Rs.10 New Price =Rs.12 % Increase in Price=2/10x100=20% We know, Ed=% Change in Denrand / % Change in Price =-20/20=-1 Now, if price rises from 10 to 13 % Change...
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A consumer buys 27 units of a good at a price Rs.10 per unit. When the price falls to Rs.9 per unit, the demand rises 27 to 30 units.
Given Q= 27, P = 10, P1 = 9, Q1 = 30 Total Expenditure Method P Q Total Expenditure (P x Q) 10 27 270 9 30 270 Since, with the fall in...
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When price of a good falls from Rs. per unit to Rs.7 per unit, its demand rises from 12 units to 16 units.
Price (Rs.) Quantity (Units) TE (Rs.) 8 12 96 7 16 112 Price decreases and TE increases. It shows inverse relationship between price and total expenditure. So, there is elastic demand or greater than unitary elastic demand.
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A consumer buys 10 units of a good at a price of Rs.9 per unit. At price of Rs.10 per unit, he buys 9 units.
Quantity (Units) Price (Rs.) TE (P x Q) (Rs.) 10 9 90 9 10 90 As per the expenditure approach, when with a change in price, the total expenditure remains unchanged, demand is unitary elastic (eD= 1). The shape...
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A consumer buys 8 units of a good at a price Rs.7 per unit. When price rises to Rs.8 per unit, he buys 7 units.
Quantity (Units) Price (Rs.) TE (Rs.) 8 7 56 7 8 56 As per the expenditure approach, when with a change in price, the total expenditure remains unchanged, demand is unitary elastic (eD, = 1) The shape of demand...
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