Concepts of Physics

IIT JEE Physics (1978 to 2018: 41 Years) Topic-wise Complete Solutions

National Anveshika Experimental Skills Test (NAEST) 2015

Results of the Final Test

The results of the College Level Final Test are

  1. First Position: Rajmane Abhijit Gagadish, B.Sc III year Willingdon College, Sangli
  2. Second Position: Srimayi Korrapati, BSc III Yr, St. Francis College for Women, Begumpet, Hyderabad
  3. Third Position: Shivani Grover, B.Sc (Honors) Physics Hansraj college, University of Delhi, New Delhi

The results of the School Level Final Test are

  1. First Position: Pradyot Bajpai, 12 Montfort Inter College, Lucknow
  2. Second Position: Ansar Ahmad, 12 Kendriya Vidyalaya, 3BRD Chandigarh
  3. Third Position: Shubhankar, 12th Tagore Public School, Allahabad

Results of the Preliminary Test

The results of the College Level Preliminary Test are

  1. First Position: Srimayi Korrapati, BSc III Yr, St. Francis College for Women, Hyderabad
  2. Second Position: U Srilatha, B Sc I Yr, St Francis College for Women, Hyderabad
  3. Third Position Jointly shared by
    1. K V Sai Swetha, BSc III Yr, St. Francis College for Women, Hyderabad
    2. B Madhurima, BSc I Yr, St. Francis College for Women, Hyderabad

The results of the School Level Preliminary Test are

  1. First Position: Abhineet Anand, FIITJEE
  2. Second Position: A Amarthya Sen, City High School
  3. Third Position Jointly shared by
    1. PAV Sidhartha, Sarath Junior College
    2. K Varun Shastry, Excellencia Junior College

Screening Test

Important: Preliminary Test

The preliminary test will be held on 16 August, 2015 (Sunday) from 2:00PM to 5:00PM at Physics Department of College of Engineering (Besides Women Hostel), Osmania University, Hyderabad. Please note Physics Deprtment of Engineering College is Located in Humanities Building and it is different from Main Physics Department of Osmania University.

Results of the Screening Test

The results of the College Level Screening Test are

  1. Srimayi Korrapati, BSc III Yr, St. Francis College for Women, Hyderabad
  2. K V Sai Swetha, BSc III Yr, St. Francis College for Women, Hyderabad
  3. B Madhurima, BSc I Yr, St. Francis College for Women, Hyderabad
  4. G Gayatri Devi, BSc II Yr, Osmania University College for Women, Hyderabad
  5. V V K Sriya, B Sc I Yr, Osmania University College for Women, Hyderabad
  6. U Srilatha, B Sc I Yr, St Francis College for Women, Hyderabad
  7. Priyanka Kumari, BSc II Yr, St Francis Degree College for Women, Hyderabad
  8. Vaishnavi M Kalode, BSc I Yr, St Francis College for Women, Hyderabad
  9. S Kruti, BSc I Yr, St Francis College for Women, Hyderabad
  10. S W Deborah, BSc II Yr, RBVRR Women's ß, Hyderabad

The results of the School Level Screening Test are

  1. B Sai Rajaji, Excellencia Junior College
  2. Ashresh Marupaka, Sarath Junior College
  3. Sachin Mishra, Tejasvi Vidyarany
  4. Kishan Sinha, FIITJEE, AOC, Secunderabad
  5. PAV Sidhartha, Sarath Junior College
  6. K Eshwar Sai Srinivas, St Ann's Grammar School
  7. M Sai Rishitha, DAV BDL Public School
  8. P Rithwik Teja, City High School
  9. T Pranav, FIITJEE World Schooh, DSNR
  10. G Deexith, City High School
  11. Saili Myana, FIITJEE
  12. Kumar Ashutosh, FIITJEE, DSNR
  13. Susmit Vivek Pimpalkar, FIITJEE World School, DSNR
  14. Shashank Anumula, Teja School, Subbaramaiah Comples, Kodada
  15. G Vamsi, FIITJEE World School
  16. B Srricharan, Excellencia Junior Colleg
  17. M Karthik, VIBGYOR IIT Academy
  18. Atharva Reddy, FIITJEE
  19. Abhineet Anand, FIITJEE
  20. M Shreya, FIITJEE World School, Secunderabad
  21. K Prajwal, Takshila Public School
  22. Aditya VSS, FIITJEE World School
  23. K Varun Shastry, Excellencia Junior College
  24. M Sanjana Reddy, Alphores
  25. Ch Varshith, Raman High School
  26. Kanaparthi Srikar, Sadhna School of Excellence
  27. Vamsi Krishna Cheguri, Triveni School
  28. G Vikram, Teja Talent School
  29. A Amarthya Sen, City High School
  30. N Abhirama Karthikeya, FIITJEE

Solutions of Screening Test

The solutions are given in this pdf file.

Questions and Videos of Screening Test

The screening was carried out through a carefully designed video quiz. The videos and questions used for screening test are given below:

No Question(s) Video Link
1 The video contains sound of four different frequencies viz. (i) 300 Hz (ii) 600 Hz (iii) 1000 Hz and (iv) 1500 Hz. The students were expected to identify these frequencies by listening to the sound.
2 There are two questions based on this video,
  1. In the beginning, water mass was rotating. Give a possible reason for it.
  2. In the central region of the bottom of the vessel there are no points of steam formation. Guess a reason for it.
3 When water was poured on the hot plate it was distributed in separate drops. Why the drops dance on the hot plate so fast as if there is no friction between them?
4 Why is it easier to take off the kurta in latter part of the video than in the former part?
5 Find time period of the pendulum shown in the Video.
6 Mark the correct options (More than one options may be correct):
  1. Question (1)
    1. F1=W, F2 is greater than W
    2. F1=W, F2=W
    3. F1=W, F2 is less than W
    4. F1 is not equal to W, F2 is not equal to W
  2. Question (2): All torques are about the diameter of the pipe in hand. Torque of F1 is T1 and Torque of F2 is T2. Torque of W in case 1 is T3 and torque of W in case 2 is T4.
    1. T1=T3 and T2=T4
    2. T2 is greater than T1
    3. T2=T1
    4. T2 is less than T1.
7 (More than one options may be correct) The stream from the lower pipe covers the least distance. This is because,
  1. Pressure of water in the bottle at the lower pipe is least.
  2. Pipe diameter of the lower pipe is smaller than the others.
  3. Height of the lower pipe over the floor is smaller than for other pipes.
  4. Pressure of water in the bottle at the lower pipe is largest.
8 (More than one option may be correct) The upper flat face of the magnet is north pole. Consider the magnetic field due to this magnet at the tip of the loop. Its direction is close to
  1. Vertically upwards
  2. Vertically downwards
  3. Horizontal, towards or away from the battery
  4. Horizontal, towards or away from the experimenter.
9 There are three questions based on this video,
  1. The balance shown in video measure mass in grams. Calculate the tension in the string when the hanging mass is stationary and rotating mass (eraser) rotates at constant speed?
  2. The hanging mass starts rising up when the eraser is rotated faster. Explain?
  3. When hanging mass is pulled down by hand, the eraser starts rotating faster. Why?
10 The cylinders and inclined plane are made up of non-magnetic material. The surface properties of the two cylinders are also same. The questions based on this video are,
  1. The time taken by the two cylinders to reach the ground changes with change in inclination angle. The time taken is more for larger inclination angle or smaller inclination angle? Why?
  2. The Yellow Color Cylinder takes lesser time in comparison to Blue Color Cylinder. Explain in detail?
11 In first case (when the book and the paper are dropped separately from the same height) the book reaches the ground earlier than the paper. In second case (when paper is placed over the book) they reach the ground together. Why?
12
  1. The flexible corrugated pipe is hollow and open at both ends. When the pipe is rotated, the bits of paper are being sucked by the pipe at one end and thrown out from the other end. Why?
  2. When the corrugated pipe is rotated faster, it produces a roaring sound. Explain the physics behind this sound?
13 The oscillations of the pendulum stops very fast when Aluminium sheet is placed below the oscillating magnet. Why?
14 The students were given a six inches plastic scale.
  1. What is the least count of the plastic scale given to you?
  2. Measure the length and breadth of this paper? Calculate the area of the sheet and the percentage error in the area?
15
  1. Why the water is not coming out of the hole when the cap is closed? What will happen if we increase the hole size?
  2. Why the water starts coming out when the cap is removed?
16 It is not possible to drink water with punctured straw. Why?
17 The bulb shown in the video is a normal household bulb of 100 Watt power rating.
  1. Calculate the resistance of the bulb filament?
  2. How much is the difference between calculated value and measurement shown by the multi-meter? Why these two values are different?
18 Which bottle was emptied first? Give explanation?

About the Test and Registration Process

NAEST is a two level test (1) School Level, Class 9 to Class 12, and (2) College Level, BSc/MSc. The NAEST involves (1) screening test on 8th Aug, (2) Prelim on Aug 16th and 17th (3) Semi Finals on 30th Sep and (4) Final on 1st Oct. Click NAEST General Information to know more.

This website is primarily meant for the students from the State of Telangana. Click Anveshika National Network to find coordinators details from other states/places. You may fill the Contact Us form to let us connected with coordinators from other states.

In Telangana State, the registration for the test can be done through

  1. Nomination by the School/College Principal (Click Invitation Letter to the Principal by Dr HC Verma and Local Coordinator)
  2. Self Registration in Special Cases.
The interested principal, physics teacher and student may fill the form given here to initiate the registration process ...

In Telengana State, we are planning to establish screening test centres at all district headquarters i.e., (1) Adilabad (2) Hyderabad (3) Karimnagar (4) Khammam (5) Mahboobnagar (6) Medak (7) Nalgonda (8) Nizamabad (9) Rangareddy (10) Warangal. The details will be worked out as time progresses.