Nageen Prakashan Physics Class 11 Solutions in Hindi

Nageen Prakashan Physics Class 11 Solutions in Hindi. We covered all the Nageen Prakashan Physics Class 11 Solutions in Hindi in this post for free so that you can practice well for the exam.

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Physics Class 11 Mock Test for Students

In Melde's experiment, when the string was stretched by a weight of 10 g, four loops were obtained. What weight should be used to double the number of loops, without disturbing the experimental arrangement? :

(A) 2.5 g

(B) 5 g

(C) 7.5 g

(D) 10 g

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In Melde's experiment. 5 loops are obtained along the string when it is stretched by a weight of 10 g. How much weight should be used to obtain 7 loops, without disturbing the experimental setup?

(A) 5.1 g

(B) 10.2 g

(C) 2.55 g

(D) 15.3 g

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What is the value of end correction for a closed organ pipe of radius r?

(A) 0.3 r

(B) 0.6 r

(C) 0.9 r

(D) 1.2 r

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What is the value of end correction for an open organ pipe of radius r?

(A) 0.3 r

(B) 0.6 r

(C) 0.9 r

(D) 1.2 r

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What is the ratio of the velocity of sound in air to fundamental frequency for a closed organ pipe of length l ?

(A) 0

(B) l

(C) 2l

(D) 4l

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In Melde's experiment, the number of loops on the string changes from 5 to 4 with the addition of a weight of 0.018 kg. Then the initial tension applied to the string is :

(A) 0.288 kgwt

(B) 0.032 kgwt

(C) 0.32 kgwt

(D) 0.3136 kgwt

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The tension in the stretched string of the sonometer increased by 44%. What will be the percentage increase in its fundamental frequency?

(A) 10 %

(B) 15 %

(C) 20 %

(D) 40 %

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If there are 6 loops for 1 m length in the perpendicular position of Melde's experiment. The number of loops in parallel positions under other identical conditions would be :

(A) 3

(B) 6

(C) 12

(D) 8

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In Melde's experiment, in a perpendicular position, a string of length 0.8 m and mass 1.0 gram vibrates in 4 segments when the tension in the string is 0.4 kg wt. The frequency of the tuning fork is :

(A) 70 Hz

(B) 140 Hz

(C) 90 Hz

(D) 180 Hz

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A sonometer wire 100 cm long has a fundamental frequency of 330 Hz. The velocity of propagation of transverse waves on the wire is :

(A) 330 m/s

(B) 660 m/s

(C) 990 m/s

(D) 115 m/s

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The string of a sonometer is divided into two parts with the help of a wedge. The total length of the string is 1 m and the two parts differ in length by 2 mm. When sounded together, they produced two beats. The frequencies of the notes emitted by the two parts are :

(A) 497 Hz and 499 Hz

(B) 499 Hz and 501 Hz

(C) 501 Hz and 503 Hz

(D) 495 Hz and 497 Hz

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If we add an 8 kg wt load to the hanger of the sonometer, the fundamental frequency becomes 3 times of its initial value. The initial load in the hanger was :

(A) 0.5 kg wt

(B) 1 kg wt

(C) 2 kg wt

(D) 4 kg wt

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