##### JEE Questions

Welcome to the BYJU’S JEE questions and answers page! Students and aspirants can access a huge library of questions covering all the important topics that are included in the JEE syllabus. The questions and answers have been prepared by a group of experienced subject matter experts. Students will find questions framed from Physics, Maths and Chemistry subjects.

The JEE questions and answers discussed here will give a much clearer idea of many JEE topics such as gravitation, thermodynamics, atomic structure, chemical bonding, binomial theorem, quadratic equation, etc. The questions have further been answered in an informative and easy to understand manner.

Alternatively, the questions are very important from an examination point of view and can help in quick revision of the different topics. Additionally, students can also clear their doubts and confusion by referring to these questions regarding any concept or topic. Students will find questions that are both conceptual and descriptive including definitions, principles, formulas, examples of, properties of, and types.

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Answer: Modulus of elasticity is a property that measures the resistance of materials towards deformation under load. Modulus of elasticity, also known as Young’s modulus is the coefficient of...
Answer: One of the properties of matrix multiplication is associative property of multiplication.  Consider 3 matrices A, B and C, if and only if the total number of columns of A = total number of...
Answer: A binary operation that gives the product of two matrices is matrix multiplication. For the process of matrix multiplication, the total number of columns in the 1st matrix should be = the total...
Answer: Symbol for average or mean is bar x. In statistics, we mostly come across the is the Mean of all possible values of any variable. Value of Mean is nothing but the same as that of arithmetic...
Answer: Matrix is a very useful topic that comes under linear algebra. It is an arrangement of elements, especially numbers, in a particular way. A matrix is a mathematical structure having rows and...
Answer: Young's modulus or the modulus of elasticity is a mechanical property that measures the tensile stiffness of a solid material. Young's modulus is a numeric constant that is named after the...
Answer: In Maths, the mean is defined as the average of all the given values. It means that the sum of all the given values divided by the total number of values given. Whereas, the standard deviation is...
Answer: No, sound waves cannot travel in a vacuum. This is because sound waves are mechanical waves that need a medium (such as air and water) to travel.  Sound in physics is defined as a vibration...
Answer: The procedure to find the inverse of a function, which contains a fraction is as follows: For example, if the given function is f(x) = 2/(x+1) Step 1: Change f(x) to y y=2/(x+1) Step 2: Now,...
Answer: No, the mean value theorem is not the same as the intermediate value theorem. The mean value theorem is all about the differentiable functions and derivatives, whereas the intermediate theorem is...
Answer: The median is defined as the middle value of the given data set. The median of 5 and 7 is 6. Explanation: Since the given number of data is even, the median of 5 and 7 is calculated as follows:...
Answer: Yes, the ellipse is a conic section. It is considered as the closed type of conic section. Based on the angle between the cone and the plane surface, the intersection will produce four different...
Answer: The formula to calculate the simple and compound interest are given below: Simple Interest Formula: Simple Interest (S.I) = PTR/100 Where, SI is the simple interest P is the principal amount T is...
Answer: Solution: Let A = z, B = iz, C = z+iz |AB| = |iz-z| |BC| = z |AC| = iz |AC| = |BC|  P is the centre of AB P = (z+iz)/2 Area of triangle ABC = ½ |AB×PC| = ½...
Answer: A heat engine is a device that converts heat to work. It takes heat from a reservoir then does work such as lifting weight and moving a piston and finally discharges heat energy into the sink...
Answer: Solution: |4-3i| = √(42+32) = √25 = 5 When tripled, magnitude = 3(5) = 15 (eiπ )3(4-3i) = (cos π+i sin π)(12-9i) = (-1+0)(12-9i) = -12+9i Hence option (1) is the answer...
Answer: In Maths, a matrix is defined as a rectangular array of numbers, which are arranged in rows and columns. Each number in the array is called the element or the entity of a matrix. The array of...
Answer: Solution: Given |z + 8| + |z - 8|= 16 Let z = x+iy |x+iy+8|+|x-iy-8| = 16 √(x+8)2+y2 = 16-√((x-8)2+y2) x2+64+16x+y2 = 256+x2+64-16x+y2-32√((x-3)2+y2) 32x =...
Answer: Solution: When the point (4,1) undergoes reflection, it becomes (1,4) After translation through a distance of 2 units (1+4)+(2,0) = (3,4) After rotation, coordinates are (√2, 7√2)...
Answer: Solution: (1+i)2/i(2i-1) = (1+i)2/(-2-i) = (1+i)2 (-2+i)/(-2-i)(-2+i) = (1+i)2 (-2+i)/(4--1) = (1+i)2 (-2+i)/5 = (1+2i-1)(-2+i)/5 = 2i(-2+i)/5 = (-4i-2)/5 Imaginary part in -4/5 ...
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