1
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
The second overtone of an open organ pipe has the same frquency as the first overtone of a closed pipe L metre long. The length of the open pipe will be
A
L
B
2L
C
$${L \over 2}$$
D
4L
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
Planck's constant (h), speed of light in vacuum (c) and Newton's gravitional constant (G) are three fundamental constants. Which of the following combinations of these has the dimension of length ?
A
$${{\sqrt {hG} } \over {{c^{3/2}}}}$$
B
$${{\sqrt {hG} } \over {{c^{5/2}}}}$$
C
$$\sqrt {{{hc} \over G}} $$
D
$$\sqrt {{{Gc} \over {{h^{3/2}}}}} $$
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