# MCQs4All - Physics Collection

## Physics MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed Test of past papers

``` Question. For ___________ flow the path of the fluid particles cannot be tracked? Laminar Streamline Turbulent Both A and B `````` Question. A wire of resistance R is coiled inductively so that its inductance is L. The impedance of the coil at a frequency of f is_______________? (R+2πfL) R+1/2πfL (R2+f2L2) (R2+4π2f2L2) `````` Question. Newton estimated the speed of sound _____________________? 281m/sec 333m/sec 340m/sec all of the above `````` Question. An inductor may store energy in ________________? Its electric field Its coils Its magnetic field Both electric and magnetic fields `````` Question. Two identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other the current in______________? Each increase Each decrease Each remains the same One increases whereas that in the other decreases ```
``` Question. At constant temperature the graph between V and 1/P is_____________? Hyperbola Parabola A curve of any shape A straight lime `````` Question. The drag force is given by_________________? Newtons law Pascals law Gauss law Stokes law `````` Question. The unit of force is _________ and its symbol is ______________ Which is the correct pair ? Newton, n Newton, N newton, n newton, N `````` Question. The number 76.85 is rounded off up to two significant figures as_____________? 76.8 77 76.9 None of these `````` Question. The bulk properties of materials such as their mode of fracture can be related to their____________________? Polymerization Cleavage Microstructure Dislocation ```
``` Question. Magnification of the astronomical telescope is_____________? fo+fe fo/fe fe/fo (1+fo/fe)L/fo `````` Question. An inductive coil has a resistance of 100Ω. When an AC signal of frequency 1000Hz is fed to the coil the applied voltage leads the current by 45Ω. What is the inductance of the coil ? 10mH 12mH 16mH 20mH `````` Question. A moving coil galvanometer of resistance 100? gives half scale deflection for a current of 20mA. What will be the potential difference across it ? 4 volt 5 volt 2 volt 0.4 volt ```