Medium
The candela is the luminous intensity,in a given direction,of a source that emits monochromatic radiation of frequency '$A$' $\times 10^{12}$ hertz and that has a radiant intensity in that direction of $\frac{1}{B}$ watt per steradian. '$A$' and '$B$' are respectively
- A$540$ and $\frac{1}{683}$
- B$540$ and $683$
- C$450$ and $\frac{1}{683}$
- D$450$ and $683$
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Similar Questions
Consider the following:
$A) 0.0025$
$B) 500.0$
$C) 2.0034$
Number of significant figures in $A, B$ and $C$ respectively,are
$A) 0.0025$
$B) 500.0$
$C) 2.0034$
Number of significant figures in $A, B$ and $C$ respectively,are
Which of the following is correct?
Medium
View SolutionHow many significant figures should be present in the answer of the following calculations?
$(i)$ $\frac{0.02856 \times 298.15 \times 0.112}{0.5785}$
$(ii)$ $5 \times 5.364$
$(iii)$ $0.0125 + 0.7864 + 0.0215$
$(i)$ $\frac{0.02856 \times 298.15 \times 0.112}{0.5785}$
$(ii)$ $5 \times 5.364$
$(iii)$ $0.0125 + 0.7864 + 0.0215$
Medium
View Solution$3.00 \ kg$ is equal to how many yards? Given: $1 \ kg = 1000 \ m$,$1 \ m = 1.094 \ yards$.
Difficult
View Solution$A$ volume of $1 \ m^3$ is equal to
Easy
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