Recent questions tagged #mcq2

0 votes

0 answers

If `oint_0^1 vec E cdot vec (ds)=0` over a surface,

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The Electric field at a point

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If there were only one type of charge in the universe,

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Consider a region inside which there are various types of charges but the total charge is zero. At points outside the

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Refer to the arrangement of charges in Fig. and a Gaussian surface of radius R with Q at the centre.

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

When coherent waves (a) same phase(b) same frequency(c) same phase difference(d) same path

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Draw a new wavefornt from the given incident

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Lighth is coming from medium 1. Some part of light is being refracted and some part is reflectedWhat is the incident wavefront_______refracted

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

What is the path difference for the two waves as given in the fig.`theta' is 'pi/20

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

In the above question what is the intensity of light at P if light from `S_1` and `S_2` is same i.e. (I) units. Consider these sources are

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

In Youngs double slit experiment the fring spacing can be increased by these methods. Write true or false. Correct if any statement is false.a) By decreasing distance.b) By increasing the wavelenghtc) By increasing the refractive index of the medium in which experiment is taking place (e.g. this experiment is originally done in air. This experiment can also be performed in water of higher refractive index)d) By increasing the distance between the two coherent sources.c) This experiment is not valid for other waves like Electromagnetic waves, Sound Waves

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The fringe spacing in Young's double slit experiment is 0.5mm. Wavelength of light is 500nm. What could be the screen distance for this experiment. The disatance between the two sources

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If the above experiment is repeated of interference, by replacing two sources to a single slits of width 1mm. What would be the thickness of central

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The electric potential in a region is given by the relation `V(x) = 4 + 5x^2` . If a dipole is placed at position (–1,0) with dipole moment `vecp` pointing along positive Y-direction,

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

What is the angular acceleration of the rod at the instant of releasing the rod? A thin homogeneous rod of mass m and length `l` is free to rotate in vertical plane about a horizontal axle pivoted at one end of the rod. A small ball of mass m and charge q is attached to the opposite end of this rod. The whole system is positioned in a constant horizontal electric field of magnitude mg `E=(mg)/(2q)`. The rod is released from shown position from

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

What is the acceleration of the small ball at the instant of releasing the rod? A thin homogeneous rod of mass m and length `l` is free to rotate in vertical plane about a horizontal axle pivoted at one end of the rod. A small ball of mass m and charge q is attached to the opposite end of this rod. The whole system is positioned in a constant horizontal electric field of magnitude mg `E=(mg)/(2q)`. The rod is released from shown position from

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

What is the speed of ball when rod becomes vertical? A thin homogeneous rod of mass m and length `l` is free to rotate in vertical plane about a horizontal axle pivoted at one end of the rod. A small ball of mass m and charge q is attached to the opposite end of this rod. The whole system is positioned in a constant horizontal electric field of magnitude mg `E=(mg)/(2q)`. The rod is released from shown position from

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

On the basis of dimensions, decide which of the following relations for the displacement of a particle undergoing simple harmonic motion is not

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

If P, Q, R are physical quantities, having different dimensions, which of the following combinations can never be a meaningful

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Photon is quantum of radiation with energy E = hν where ν is frequency and h is Planck’s constant. The dimensions of h are the same as that

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

Recent questions tagged #mcq2

Categories