Question Answers

Which of the sets given below may represent the magnitudes of three vectors adding to zero ? Which of the sets given below may represent the magnitudes of three vectors adding to zero ? September 8, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Vectors , Part 1 ,

A voltage, E = 60 sin (314t), is applied across a resistor of 20 ohm. what will br the reading of Irms (a) in an ac ammeter? (b) in an ordinary moving coil ammeter in series with the resistor? A voltage E = 60 sin (314t) is applied across a resistor of 20 ohm. what [...]

Two vectors of magnitudes 4 and 6 are acting through a point. If the magnitude of the resultant is R Two vectors of magnitudes 4 and 6 are acting through a point. If the magnitude of the resultant is R September 8, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Vectors , [...]

An alternating current is given by the following equation: I =3 root 2 sin (100 pie t + pie/4). Given the frequency and rms value of the current. An alternating current is given by the following equation: I =3 root 2 sin (100 pie t + pie/4). Given the frequency and rms value of the [...]

A rectangular slab ABCD, of refractive index n1, is immersed in water of refractive index n2 (n1 > n2). A ray of light is incident aat the surface AB of the slab as shown in figure. Find the maximum value of angle A rectangular slab ABCD is immersed in water of refractive index n2 (n1 [...]

One of the forces is double and the other resultant is equal to the greater force. The angle between them is One of the forces is double and the other resultant is equal to the greater force. The angle between them is September 8, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - [...]

A slab of refractive index mu is placed in air and light is incident at maximum angle theta 0 from vertical. Find minimum value of mu for which total internal reflection takes place at the vertical surface. and glass it enters water. If the refraction index of glass and water are 1.5 and 1.3 Light [...]

Two forces acting in opposite directions have a resultant of 10 N and if they act at the right angles to each other, resultant is 50 N. The magnitudes of the forces are resultant is 50 N. The magnitudes of the forces are Two forces acting in opposite directions have a resultant of 10 N [...]

A glass rod having square cross- section is bent into the shape as shown in the figure. The radius of the inner semi-circle is R and width of the rod is d. Find the minimum value of d/R so that the light that and glass it enters water. If the refraction index of glass and [...]

If A = B + C and the magnitudes of A, B and C are 5, 4 and 3 units, respectively, the angle between A and C is 4 and 3 units B and C are 5 If A = B + C and the magnitudes of A respectively the angle between A and C [...]