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Mock Set 1 (in Hindi)
243 plays

2 single correct objective questions in linear expansion.

Udit Gupta is teaching live on Unacademy Plus

Udit Gupta
A Mechanical Engineer from NIT Allahabad here to help learners with physics. Also a Star ⭐ educator.

Unacademy user
sir what is the meaning of #include<iostream>
Sandeep Singh
7 months ago
Video dekhte jao smjh a jayega
as exams are near every educator on unacademy on unacademy charging lots of money and you are also the part of it I don't think you should copy others because you are different each an 4 hours but that's
bcoz u r different and unique teacher don't have money mind like others
add more ques to will help us a lot
thnx a lot sr
Udit Gupta
9 months ago
you welcome!
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  3. Question 1 Three rods of equal length are joined to form an equilateral triangle ABC. D is the midpoint of AB. The coefficient of line ar expansion is for AB and 2 for AC and BC. If the distance DC remains constant for small changes in temperature: (b) 2 2 1 2 2

  4. Answer1 DC VBC2 - DB2 0 (2BCABC- 2DBADB) 1 2- 4 Correct option is (c).

  5. Question 2 Two rods, one of aluminium and the other made of steel, having initial lengths 11 and 12 are connected together to form a single rod of length l1 + 12. The coefficients of linear expansion for aluminium and steel are , and s, respectively. If the length of each rod increases by the same amount when their temperatures are raised by t c, then find the ratio 1+2

  6. Answer 2 The length of each rod increases by the same amount. 22+15+1 1 1 T 2 Correct option is (d)

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