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Mock Set 1 (in Hindi)
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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.

U
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 it.....it will help us a lot
thnx a lot sr
Udit Gupta
9 months ago
you welcome!
1. Properties of Matter Booster Set udit Gupta

2. NEW COURSE unacademy IT JEE 100 PYQs to Score High in Physics for 12th Board Exam Last date to apply is 14th Jan Udit Gupta Visit: unacademy.com/plus

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)