Let $f(\theta)$ is distance of the line $( \sqrt {\sin \theta } )x + ( \sqrt {\cos \theta })y +1 = 0$ from origin. Then the range of $f(\theta)$ is -
Let $f(\theta)$ is distance of the line $( \sqrt {\sin \theta } )x + ( \sqrt {\cos \theta })y +1 = 0$ from origin. Then the range of $f(\theta)$ is -
- A
$\left[ {\frac{1}{{{2^{\frac{1}{4}}}}},\infty } \right)$
- B
$\left[ {1,\sqrt 2 } \right]$
- C
$[{1},{\infty } )$
- D
$\left[ {\frac{1}{{{2^{\frac{1}{4}}}}},1 } \right]$
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