In the situation as shown in figure time period of vertical oscillation of block for small displacements will be
In the situation as shown in figure time period of vertical oscillation of block for small displacements will be
- A
$2\pi \cos \theta \sqrt {\frac{m}{{2k}}} $
- B
$2\pi \sec \theta \sqrt {\frac{m}{{2k}}} $
- C
$2\pi \sin \theta \sqrt {\frac{m}{{2k}}} $
- D
$2\pi \cos ec\theta \sqrt {\frac{m}{{2k}}} $
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