Recently Active General Physics Questions

The side of a cube is measured by vernier callipers. (10 divisions of a vernier scale coincide with 9 divisions on main scale where 1 division on main scale is 1 mm.) The main scale reads 10 mm. first division of the vernier ...

pitch of screw gauge is 1mm and there are 100 divisions on circular scale.while measuring diameter of wire,the linear scale reads 1mm and 47th division on circular scale coicides with refrence line.The length of wire is 5.6cm ...

In searle's apparatus, diameter of the wire was measured 0.05 cm by screw gauge of least count 0.0001 cm. length of wire was measured 110 cm by meter scale of least count .1 cm. An external load of 50N was applied. The extens ...

jee 1989 An electric is dipole placed in uniform electric field. what is the minimum time taken for the charge to come from extream position to mean position? ...

In a vernier calliper n divisions on the main scale correspond to n+1 no the vernier scale. Each division of the main scale is of a unit. What is the least count? ...

A=(a) *Image* ...

I just wanted to ask that the "Upload Image" option in the above menu when clicked gives no response.How to upload image from the computer????Pls Help ...

An unexpected question....may be HCV expects this in iit2009: When Neils Bohr shook hand with Werner Heisenberg, what kind of force they exerted? (a) Gravitational (b) Electromagnetic (c) Nuclear (d) Weak I just doubled up in ...

in a stationary wave on a string,is the elastic potential energy max at the nodes?(thats what i thought till now until i saw fiitjee's solutions to a paper) ...

A student performs an experiment for determination of g= \frac{4\pi^2l}{T^2} , l≈1 m, he commits an error of Δl. For T he takes the time of n oscillations with a astop watch of least count ΔT and hes a human error of 0.1 ...

1) A wheel with a radius 45 cm rolls without slipping etc. At time t1 a painted pt p is at the bottom of the wheel in contact with the floor. At a time t2, The wheel has rolled thru 1 half revolution.What are a)Magnitude b)an ...

*Image* ...

*Image* *Image* ...

Dimension of 1/2 ε0E2 (ε0 is the permittivity of free space, E is electric filed) is? ...

In cross product, does the mag. give the mag. of the perpendicular vector? Or of what? Isn't the perp. vector a unit vector? ...

How is zero error measured What is the least +ve value of zero error? How is it different from back lash error/ ...

If the zero error is given by +.0002 units and the final reading on a measuring device is 1 unit What is the correct length? ...

Edge of a cube is measured to be 1.2x10-2. The volume should be recorded as A) 1.7 x 10-6 m3 B) 1.73 x 10-6 m3 C) 1.70 x 10-6 m3 D) 1.728 x 10-6 m3 ...

In da fol. how many sig. fig. r ther 1) 0.070 2) 0.07*10^-1 3) 70*10^-3 4) 0.70*10^-2 ...

*Image* 1ST PART: WHAT IS THE CURRENT FLOW THORUGH ALL THE RESISTORS ? ASSUME THAT BATTERY HAS AN INTERNAL RESISTANCE OF R/3 *Image* ...

http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/micrometer.php iT TEACHES EVERYTHIN ABT THESE TWO INSTRUMENTS N MANY OTHERS AS WELL ...

The whole length of the screw of screw gauge is 4 cm this corresponds to 40 rotations of the screw Also , the circlular scale is marked at every 1 degree. Fidn the Pitch and the least count ...

least count of .0001 m the pitch is 1 mm fidn the no of divisions on the circular scale ...

A wire of length l=6±.06 cm and radius =0.5±0.005 cm and mass m=0.3±0.003 gm. maximum percentage error in density is ? ...

Pressure depends on distance as P=\frac{\alpha}{\beta}exp(\frac{-\alpha z}{k\theta}) where alpha, beta are constants, z is distance, k is boltzmann's constant and theta is temperature. The dimension of beta is? ...

A sound wave has a frequency of 2 KHz and wavelength of 35 cm. How long will it take to travel 1.4 km. (a) 600m/s (b) 700m/s (c) 800m/s (d) 900m/s in this question v have to find out time and the ans. r given in m/s and i got ...

A = ((B^x)/(C^y + E^z)) + M^n - S^p............ errorrs(uncertainty) of +/- u,v in B and C respectively and ya both M and S and E hav an uncertainty of g,h,i respectively THODA LAMBA HAI PAR I GUESS it deals wid ALL DA CONCEP ...

This is a question straight from Resnik-Halliday,although i cudn't find the answer anywhere in the book.(I got to know it frm a TV program) We all know that a black-hole is a star that has collapsed into itself so that it has ...

Suppose a astronaut has sailed out of his spaceship and by mistake the cable wire conneting him with the spaceship has somehow been cut loose.Now luckily the astronaut had a ball in his hand.Devise a way so that he may return ...

*Image* please make me understand why its twice and all 2pa << :-/ ...