1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

An organ pipe filled with a gas at 27$$^\circ$$C resonates at 400 Hz in its fundamental mode. If it is filled with the same gas at 90$$^\circ$$C, the resonance frequency at the same mode will be

A
512 Hz
B
420 Hz
C
440 Hz
D
484 Hz
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

The sliding contact C is at one fourth of the length of the potentiometer wire (AB) from A as shown in the circuit diagram. If the resistance of the wire AB is R0, then the potential drop (V) across the resistor R is

NEET 2022 Phase 2 Physics - Current Electricity Question 16 English

A
$${{2{V_0}R} \over {2{R_0} + 3R}}$$
B
$${{4{V_0}R} \over {3{R_0} + 16R}}$$
C
$${{4{V_0}R} \over {3{R_0} + R}}$$
D
$${{2{V_0}R} \over {4{R_0} + R}}$$
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