Q 1: A moving charge will produce
|[pic]Q 1: A moving charge will produce |
|a) |
|no field |
|b) |
|an electric field |
| |
| |
|c) |
|a magnetic field |
|d) |
|both 'b' and 'c' |
| |
|Q 2: A man in air, a fish in water appears to be at 30 cm from the surface. If |
|refractive index of water is 4/3, then the true depth at which the fish remain |
|is : |
|a) |
|30 cm |
|b) |
|40 cm |
| |
| |
|c) |
|50 cm |
|d) |
|35 cm |
| |
|Q 3: If refractive index of calcite crystal is [pic]for O-ray and [pic]for |
|E-ray, then along the optical axes of the crystal. |
|a) |
|[pic] |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
|d) |
|none of these |
| |
|Q 4: In Young's double slit experiment, the separation between the slits is |
|halved and the distance between the slits and screen is doubled. The fringe |
|width is |
|a) |
|unchanged |
|b) |
|doubled |
| |
| |
|c) |
|halved |
|d) |
|quadrupled |
| |
|Q 5: Electric lines of force about positive charge are |
|a) |
|circular, clockwise |
|b) |
|circular, anticlockwise |
| |
| |
|c) |
|radial inward |
|d) |
|radial outward |
| |
|Q 6: A parallel plate air capacitor has a capacitance [pic]. If the distance |
|between the plates is trebled and a dielectric medium is introduced the |
|capacitance becomes [pic]. The dielectric constant of the medium is |
|a) |
|4 |
|b) |
|12 |
| |
| |
|c) |
|9 |
|d) |
|2 |
| |
|Q 7: Find the resistance of a circuit between A and B in the figure below |
|[pic] |
|a) |
|3 R |
|b) |
|3 R/2 |
| |
| |
|c) |
|R/3 |
|d) |
|2 R/3 |
| |
|Q 8: If there are n capacitors in parallel connected to V volt source, then |
|energy stored is equal to |
|a) |
|CV |
|b) |
|[pic] |
| |
| |
|c) |
|CV2 |
|d) |
|[pic] |
| |
|Q 9: If the number of condensers are connected in series, then their resultant |
|capacitance is |
|a) |
|lower than the lowest individual capacity |
| |
| |
|b) |
|higher than the highest individual capacity |
| |
| |
|c) |
|equal to the sum of the individual capacity |
| |
| |
|d) |
|cannot be predicted |
| |
|Q 10: If two condensers of capacity C1 and C2 are connected in parallel, their |
|equivalent capacity Cp is |
|a) |
|C1 + C2 |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
| |
| |
|d) |
|[pic] |
| |
|Q 11: Sixty four charged drops of capacity C and potential V are put together |
|to form a bigger drop. If charge on each drop is q, then the charge on bigger |
|drop will be |
|a) |
|16 q |
|b) |
|4 q |
| |
| |
|c) |
|64 q |
|d) |
|q |
| |
|Q 12: Electric intensity at a distance r from the centre of a conducting sphere|
|having a charge q is |
|a) |
|[pic] |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
|d) |
|[pic] |
| |
|Q 13: In the following circuit, minimum current will flow through the |
|resistance of |
|[pic] |
|a) |
|[pic] |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
|d) |
|[pic] |
| |
|Q 14: Which one of the following radiation has the lowest frequency ? |
|a) |
|visible light |
|b) |
|X-rays |
| |
| |
|c) |
|microwaves |
|d) |
|Ultraviolet rays |
| |
|Q 15: Two smaller voltmeter of same ranges are connected in series and this |
|series combination is connected across 1 ohm resistor with a battery of emf of |
|1 volt. The readings in the two voltmeters respectively will be |
|a) |
|1 volt and zero |
|b) |
|(1/2) volt each |
| |
| |
|c) |
|zero volt and zero volt |
| |
| |
|d) |
|the combination will not work |
| |
|Q 16: Which one of the following is not an application of eddy currents ? |
|a) |
|speedometer of automobiles |
| |
| |
|b) |
|damping of oscillations of a simple pendulum |
| |
| |
|c) |
|damping of a galvanometer |
|d) |
|induction furnace |
| |
|Q 17: A and B are section of two long parallel wires placed perpendicular to |
|the plane of paper. They carry currents of 5 ampere and 10 ampere respectively |
|in the directions indicated in the directions indicated in the figure. If the |
|separation between them is 3 m, the zero of the magnetic field in the plane of |
|the paper is at a point |
|[pic] |
|a) |
|3 m to the left A |
|b) |
|3 m to the right of B |
| |
| |
|c) |
|2 m to the right of A |
|d) |
|2 m to the left of B |
| |
|Q 18: Which one of the following substance is diamagnetic ? |
|a) |
|liquid oxygen |
|b) |
|air |
| |
| |
|c) |
|copper sulphate |
|d) |
|water |
| |
|Q 19: In a series L-C-R circuit, the value of L and C are so adjusted that the |
|maximum current flows through the circuit. In the case, if the P.D. across L is|
|200V, then the P.D. across the capacitance will be |
|a) |
|more than 200V |
|b) |
|less than 200V |
| |
| |
|c) |
|equal to 200V |
| |
| |
|d) |
|P.D. across the resistance |
| |
|Q 20: Einstein photoelectric equation states that [pic]In this equation v |
|refers to |
|a) |
|velocity of all ejected electrons |
| |
| |
|b) |
|mean velocity of emitted electrons |
| |
| |
|c) |
|minimum velocity of emitted electrons |
| |
| |
|d) |
|maximum velocity of emitted electrons |
| |
|Q 21: The de Broglie wavelength associated with a ball of mass 200 g and moving|
|at a speed of 5 meters/hour, is of the order of [pic] |
|a) |
|[pic] |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
|d) |
|[pic] |
| |
|Q 22: In case of an n-p-n transistor, the collector current is always less than|
|the emitter current, because |
|a) |
|emitter side is forward biased |
| |
| |
|b) |
|collector side is reverse biased |
| |
| |
|c) |
|a few electrons are lost in the base |
| |
| |
|d) |
|a few electrons are lost in the emitter |
| |
|Q 23: Which of the following is NOT disadvantage of transistor over a triode? |
|a) |
|low efficiency |
| |
| |
|b) |
|higher temperature sensitivity |
| |
| |
|c) |
|higher noise level |
| |
| |
|d) |
|can handle only smaller currents |
| |
|Q 24: The velocity of electromagnetic waves in a medium is [pic]The electric |
|constant of the medium is |
|a) |
|4 |
|b) |
|2.25 |
| |
| |
|c) |
|3/2 |
|d) |
|2/3 |
| |
|Q 25: The belt of an electrostatic generator is 50 cm wide and travels 30 cm / |
|sec. The belt carries charge into the sphere at a rate corresponding to |
|[pic]ampere. What is the surface density of charge on the belt. |
|a) |
|[pic] |
|b) |
|[pic] |
| |
| |
|c) |
|[pic] |
|d) |
|[pic] |
| |
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- song what a day that will be
- best q and a questions
- what a day that will be soundtrack
- what a day that will be youtube
- what a day that will be music
- lyrics what a day that will be
- what a day that will be pdf
- q and a questions for youtube
- what a day that will be song
- what a day that will be chords
- what a day that will be printable
- what a day that will be hymn