PhysicsGutka

International Junior Science Olympiad (IJSO) IJSO is a competitive examination open to students of all countries in the world, primarily studying in secondary schools. All basic subjects of Science (Physics, Chemistry, Biology and Mathematics) are given roughly equal representation in the IJSO examination. The Junior Science Olympiad program follows the following 5 stages: Stage I: National Standard Examination in Junior Science (NSEJS) Stage II: Indian National Junior Science Olympiad (INJSO) Stage III: Orientation cum Selection Camp (OCSC) in Junior Science Stage IV: Pre-departure Training Camp (PDT) for IJSO Stage V: Participation in International Junior Science Olympiad (IJSO) Stage I: National Standard Examination in Junior Science (NSEJS) NSEJS is the first stage of selection of stu d ents in the Junior Science Olympia d Programme. NSEJS is organise d by the In d ian Association of Physics Teachers (IAPT). Every stu d ent aspiring to go through successiv

For each function obtain the derivative. y = 12x5 + 3x4 + 7x3 + x2 − 9x + 6 y = sin (5x3 + 2x) y = x2sin 2x y = x4(sin x3 − cos x2) y = e3x − 2 y = 4xe2x − 9x y = cos x over x y = x over cos x y = ln sin 5x3 y = e to the power of the square root of ( 2x - 17 ) y = 4xe−5x y = 10(cos x) −10x y = 4ex(1 + ln x)(sin x) y = exln (5x3 + x2) y = (2x plus 3) over (x plus 1) y = (cos x)(1 − sin2x) y = 5xe2 + 5x y = cosec 3x y = ln (4e3x) y =x squared divided by the natural log of ( 1 minus 4 (x squared))

For SA 1. The question paper consists of two parts (both contain only multiple choice questions) for 100 marks. There will be four sections in Part I (each containing 15 questions) and four sections in Part II (each containing 5 questions). 2. All questions are compulsory. 3. In Part A - Each correct answer gets 1 mark and for each incorrect answer 0.25 mark will be deducted. 4. In Part B - Each correct answer gets 2 mark and for each incorrect answer 0.50 mark will be deducted.  Sl. No Subject Part I Part II 1Mathematics15 questions – 1 mark each5 questions – 2 marks each2Physics15 questions – 1 mark each5 questions – 2 marks each3Chemistry15 questions – 1 mark each5 questions – 2 marks each4Biology15 questions – 1 mark each5 questions – 2 marks each For SB +2 1.The question paper consists of two parts (Part A contains multiple choice questions and Part B contains descriptive type questions) for 100 marks. It consists of 80 questions of 1 mark each and 40 questions of 2 marks e

Mostly I see confusion in trainee faculties and students about rotation motion and circular motion. Here you go In rotation the body's centre of mass does not undergo any translation motion. In other words the centre of mass will remain at on place. Like a top spinning on its axis. In circular motion the body's centre of mass goes around a fixed centre maintaining a constant distance from it. Which means the centre of mass is actually going through a translation motion. For example an ant sitting on the circumference of the spinning top in the above example.  Now to make matters clear. Look at a rotating fan.  The entire fan is not going anywhere and just spinning around its axle. That's rotation motion for the entire fan.  Now look at the blades of the fan. The centres of the blade are going around the axle but actually making a translation motion. Hence the blades are in circular motion.  I hope you got the difference.  If centre of mass is not moving then rotatio

Questions to Try Q1. TWO particles, 1 and 2 move with constant velocities v1 and v2 along two mutually perpendicular straight lines towards the intersection point O. At the moment t= 0 the particles were located at the distance L1 and L2 from the point O How soon will the distance between the particles become the smallest? What is it equal to? Q2. A police Jeep Approaching a Right Angeled intersection from the north is chasing a. speeding car that has turned the corner and is now moving straight east When the jeep is 0.6 km north of the intersection and the ear is 0.8 km to the east the police determine with radar that the distance between them and the car is increasing at 20 KMPH . If the , Jeep is moving at 60 kmph at the instant of measurement.what is the speed of the car? Q3. You are given a rod of length L The linear mass density is A. such that A = a + bx Here a and b are constants and the mass of the rod increases as x decreases Find the mass of the rod. Q4. If the sum of

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