Description : i and j are unit vectors along X-axis and Y-axis respectively. What is the magnitude and direction of the vector i + j and i - j?
Last Answer : i and j are unit vectors along X-axis and Y-axis respectively. What is the magnitude and direction of the ... directions of (i + j) and (i - j)?
Description : Show that magnitude of vector product of two vectors is numerically equal to the area of a parallelogram formed by the two vectors.
Last Answer : Show that magnitude of vector product of two vectors is numerically equal to the area of a parallelogram formed by the two vectors.
Description : The magnitude of scalar product of two unit vectors perpendicular to each other is
Last Answer : The magnitude of scalar product of two unit vectors perpendicular to each other is (A) zero (B) 1 (C) -1 (D) 2
Description : The vectors of the electromagnetic wave propagation can be expressed in a) Dot product b) Cross product c) Unit vector d) Perpendicular vector
Last Answer : b) Cross product
Description : The resultant of two vectors of magnitude |P| is also |P|. They act at an angle
Last Answer : The resultant of two vectors of magnitude |P| is also |P|. They act at an angle (A) 60° (B) 90° (C) 120° (D) 180°
Description : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.
Last Answer : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.
Description : The magnitude of scalar product of the vectors A = 2i + 5k and B = 3i + 4k is
Last Answer : The magnitude of scalar product of the vectors A = 2i + 5k and B = 3i + 4k is (A) 20 (B) 22 (C) 26 (D) 29
Description : P = i + 2k and Q = 2i + j -2k are two vectors, find the unit vector parallel to P x Q.
Last Answer : P = i + 2k and Q = 2i + j -2k are two vectors, find the unit vector parallel to P x ... find the vector perpendicular to P and Q of magnitude 6 units.
Description : State the characteristics of the vector product (cross product) of two vectors.
Last Answer : State the characteristics of the vector product (cross product) of two vectors.
Description : Define and explain vector product of two vectors with suitable examples.
Last Answer : Define and explain vector product of two vectors with suitable examples.
Description : The vector product of two vectors is given by area of the parallelogram. State True/False. a) True b) False
Last Answer : a) True
Description : The dot product of two vectors is a scalar. The cross product of two vectors is a vector. State True/False. a) True b) Fals
Description : In homogeneous coordinates value of ‘h’ is consider as 1 & it is called….. a.Magnitude Vector b.Unit Vector c.Non-Zero Vector d.Non-Zero Scalar Factor
Last Answer : d.Non-Zero Scalar Factor
Description : If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the absolute value of `[hat(a)+hat(b) hat(b)+hat(c) h
Last Answer : If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the ... A. `sqrt2` B. `sqrt3` C. `3sqrt2` D. `2sqrt3`
Description : If vectors A = B + C and magnitudes of A, B and C are 5, 4 and 3 unit respectively, then angle between A and B is
Last Answer : If vectors A = B + C and magnitudes of A, B and C are 5, 4 and 3 unit respectively, then angle between A and B ... (C) tan-1 (5/3) (D) cos-1 (3/5)
Description : Whether the resultant of two vectors of unequal magnitude be zero?
Last Answer : Whether the resultant of two vectors of unequal magnitude be zero?
Description : Two vectors are said to be equal if – (1) only their magnitudes are same (2) only their directions are same (3) both magnitude and direction are same (4) magnitudes are same but directions are opposite
Last Answer : (3) both magnitude and direction are same Explanation: If the magnitude as well as direction of two vectors are equal, then they are known as equal vectors. In other words, two vectors are ... headed towards the same direction. For two equal vectors, their directed line segments must be parallel.
Description : Two vectors are said to be equal if (1) only their magnitudes are same (2) only their directions are same (3) both magnitude and direction are same (4) magnitudes are same but directions are opposite
Last Answer : both magnitude and direction are same
Description : If vectors v1 = 3i + 4j + k and v2 = i - j - k, determine the magnitude of v1 + v2.
Last Answer : If vectors v1 = 3i + 4j + k and v2 = i - j - k, determine the magnitude of v1 + v2.
Description : When is the magnitude of the sum of vectors A+B greater than that of A-BWhen is the magnitude of A-B greater than that of A+B?
Last Answer : none
Description : he work done of vectors force F and distance d, separated by angle θ can be calculated using, a) Cross product b) Dot product c) Addition of two vectors d) Cannot be calculated
Last Answer : b) Dot product
Description : Explain, how two vectors are subtracted. Find their resultant by using triangle law of vector addition.
Last Answer : Explain, how two vectors are subtracted. Find their resultant by using triangle law of vector addition.
Description : Using triangle law of vector addition, explain the process of adding two vectors which are not lying in a straight line.
Last Answer : Using triangle law of vector addition, explain the process of adding two vectors which are not lying in a straight line.
Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge
Last Answer : The answer is '3'
Last Answer : answer:
Description : The equation vectors a + a = a is (A) meaningless (B) always true (C) may he possible for limited values of a’ (D) true only when vector a = 0
Last Answer : The equation vectors a + a = a is (A) meaningless (B) always true (C) may he possible for limited values of a’ (D) true only when vector a = 0
Description : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector iii. Negative vectors iv. Equal vectors
Last Answer : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector ... vectors iv. Equal vectors v. Position vector
Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector?
Last Answer : 3
Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)
Last Answer : (d) (ii) and (iv)
Description : The primary North American vector transmitting arthropodborne virus encephalitis is the a) mosquito Arthropod vectors transmit several types of viruses that cause encephalitis. The primary vector in North America is ... the mosquito. d) flea. The primary vector in North America is the mosquito.
Last Answer : a) mosquito Arthropod vectors transmit several types of viruses that cause encephalitis. The primary vector in North America is the mosquito.
Description : According to law of triangle of forces (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side ... point are in equilibrium, each force is proportional to the sine of the angle between the other two
Last Answer : (C) If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
Description : According to Lami's theorem (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side being proportional to ... point are in equilibrium, each force is proportional to the sine of the angle between the other two
Last Answer : Answer: Option D
Description : The two sides of a tringle are increasing at the rate of 1/2 ft/sec with their included angle decreasing at the rate of π/90 rad/sec. What is the rate of change of area when the sides and the included angle are respectively 5 ft,8 ft, and 60°?
Last Answer : Area = (L1 L2) sin(angle) , where L1, L2 and and angle are functions of time t. Take the derivative using the multiplication rule. The derivative will equal (L1L2)(derivative of sin) + sin times ... will have to use the multiplication rule a second time to get the derivative of L1 L2. Good luck.
Description : The angle between two altitudes of a parallelogram through the vertex of an obtuse angle of the parallelogram is 60°. -Maths 9th
Last Answer : Let the parallelogram be ABCD, in which ∠ADC and ∠ABC are obtuse angles. Now, DE and DF are two altitudes of parallelogram and angle between them is 60°.
Description : How many image can a man see if he stands between two plane mirrors inclined at an angle of 60°?
Last Answer : 5
Description : The angle between two plane mirrors of optical square, is (A) 20° (B) 30° (C) 45° (D) 60°
Last Answer : (C) 45°
Description : The angle between the index glass and the horizon glass of a box sextant is 40°; the horizontal angle between the two points sighted by the instruments is : (a) 20° (b) 60° (c) 40° (d) 80°
Last Answer : (a) 20°
Description : The adjacent sides of a parallelogram are 2a and a. If the angle between them is 60°, then one of the diagonals of the parallelogram is -Maths 9th
Description : A force of 10 N displaces a body by a distance of 3 m at an angle 60° to its own direction. Find the amount of work done. -Physics 9th
Last Answer : F=10N,S=2m,θ=600 So, Work=F×Scosθ=10×2cos600 =10×2×21=10J
Description : what- Based on the given information, which conjecture is invalidGiven: An angle in a linear pair has one angle that measures 60°.?
Last Answer : The measure of the other angle is also 60°.
Description : which figure is a counterexample to the following conditional statementIf a triangle has an angle that measures 60°, then it is equilateral.?
Last Answer : A+
Description : On an open ground, a biker follows a track that turns to his left by an angle of 60° after every 600 m. Starting from a given turn
Last Answer : On an open ground, a biker follows a track that turns to his left by an angle of 60° after ... total path length covered by the motorist in each case.
Description : A man applies a force of 10 N on a garbage crate. If another man applies a force of 8 N on the same crate at an angle of 60° with respect
Last Answer : A man applies a force of 10 N on a garbage crate. If another man applies a force of 8 N ... force and direction of the crate, if crate is stationary.
Description : The angle of minimum deviation of an equiangular prism, having a refractive index of 1.732 is (a) 60° (b) 30° (c) 45° (d) 0°
Last Answer : Ans:(a)
Description : If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°
Last Answer : (2) 30° Explanation: The angle between the incident ray and the normal is known as the angle of inci dence. The angle between the reflected ray and the normal is known as the angle of reflection.
Description : The angle in which a cricket ball should be hit to travel maximum horizontal distance is : (1) 60° with horizontal (2) 45° with horizontal (3) 30° with horizontal (4) 15° with horizontal
Last Answer : (2) 45° with horizontal Explanation: This has to do with the equation of a parabola or trajectory which is z = (tane)x 2 cos 9) 2. We can see that if the ball is fired at a 45 degree angle from the ground, the horizontal distance will be a maximum.
Description : The asbestos cement pipes are generally laid A. Horizontally B. Vertically C. At an angle of 30° D. At an angle of 60°
Last Answer : ANS: B
Description : The screens are fixed A. Perpendicular to the direction of flow B. Parallel to the direction of flow C. At an angle 30° to 60° to the direction of flow D. None of these
Last Answer : ANS: C