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Recent questions tagged physics
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A shell is fired from a gun from the bottom of Hill along slope the slope o
physics
asked
Jun 22, 2018
by
p40771312
1
answer
Time after which velocity vector of projectile is perpendicular to initial
physics
asked
Jun 22, 2018
by
sharmakanika2031
1
answer
Radius of curvature of path when a projectile is at highest point of trajec
physics
asked
Jun 22, 2018
by
sharmakanika2031
0
answers
A boy stands d distance behind bus. Bus starts from rest and accelerates at
physics
asked
Jun 22, 2018
by
sharmakanika2031
1
answer
If there is n capacitor in parallel contacted to V volt source, what will
physics
asked
Jun 22, 2018
by
rahul1438n
0
answers
What is the energy across one capacitor
physics
asked
Jun 22, 2018
by
rahul1438n
0
answers
The velocity of a body is given by V=At square +Bt+C if V and t are express
physics
asked
Jun 22, 2018
by
reema10102002
0
answers
Derive the expression for energy SHN assuming that the energy depend upon t
physics
asked
Jun 22, 2018
by
shrutimiunta160
0
answers
A body is projected with a velocity of 10 m/s at an angle of 30 degrees wit
physics
asked
Jun 22, 2018
by
rudansh
1
answer
EVery atoms are acts like a good dipole
physics
asked
Jun 22, 2018
by
sujanjain08
0
answers
Consider a two body system of equal masses for which the net external force
physics
asked
Jun 22, 2018
by
khajuria.ankush26
1
answer
A ball of mass m hits another ball of equal mass at least in an elastic col
physics
asked
Jun 22, 2018
by
khajuria.ankush26
1
answer
An iron sphere 100kg is suspended freely from a rigid support by means of a
physics
asked
Jun 22, 2018
by
mademonikalyani141
1
answer
Show that: dF = IdL
physics
asked
Jun 21, 2018
by
assidheeq95
1
answer
A man standing in the rain holds a umbrella at an angle 30 from ventral. He
physics
asked
Jun 21, 2018
by
meghnakondel
1
answer
Give me tne solution of 1st que plssss
physics
asked
Jun 21, 2018
by
rajputdivya571
0
answers
a particle started moving from the rest. In t second it travels x. In next
physics
asked
Jun 21, 2018
by
nityamdixit14
1
answer
A small particle attach to the one end of string. The other end of the stri
physics
asked
Jun 21, 2018
by
abhijeetvaidya001
0
answers
Two sphere having radii of 5cm and 10cm bear identical charge of 6.6nC . Fi
physics
asked
Jun 21, 2018
by
ribhavjohar
1
answer
Mass and length of a metalcube are 10kg+-0.1kg and 1m+-0.02m it's density w
physics
asked
Jun 21, 2018
by
raghavendrareddy816
1
answer
On the basis of unit cell concept a crystal has :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
In compound microscope the magnification is 95, and the distance of object from objective lens 1/3.8 cm and focal length of objective is ¼ cm. What is the magnification of eye pieces when final image is formed at least distance of distinct vision :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Two particles are projected with same initial velocity one makes angle ? with horizontal while other makes an angle ? with vertical. If their common range is R then product of their time of flight is directly proportional to :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Frequency of an E.M. waves is 10 MHz then its wavelength is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
When a stick is released (as shown in fig.). Its free end velocity when it strikes the ground is : l = 0.6m Hinge (ground)
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Two conducting slabs of heat conductivity $K_1$ and $K_2$ are joined as shown in fig. The temp. at ends of the slabs are $\theta_1$ and $\theta_2({\theta_1}>{\theta_2})$ the, final temp. ( $\theta_m$ ) of junction is : <br>
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
For a prism its refractive index is cot A/2 then minimum angle of deviation is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The half life of a radio nuclide is 77 days then its decay constant is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A radio-active elements emits one $\alpha$ and $\beta$ particles then mass no. of daughter element is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Two identically charged particles A and B initially at rest, are accelerated by a common potential difference V. They enters into a transverse uniform magnetic field B. They describe a circular path of radii $r_1$and $r_2$ respectively then their mass ratio is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The total energy of an electron is 3.555 MeV, then its Kinetic energy is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The K.E. of electron and photon is same then relation between their De-Broglie wavelength :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Light of wavelength 3000 Å in Photoelectric effect gives electron of max. K.E. 0.5 eV. If wavelength change to 2000 Å then max. K.E. of emitted electrons will be :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
0
answers
A particle is projected with velocity 'u' makes an angle $\theta w.r.t $horizontal. Now it breaks in two identical parts at highest point of trajectory. If one part is retrace its path, then velocity of other part is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A sphere maintained at temperature 600 K, has cooling rate R in an external environment of 200 K temp. If its temp. falls to 400 K then its colling rate will be -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Initial pressure and volume of a gas are P and V respectively. First its volume is expanded to 4V by isothermal process and then again its volume makes to be V by adiabatic process then its final pressure is ($ \gamma=1.5$) -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A cylindrical tube (L = 125 cm) is resonant with a tuning fork of frequency 330 Hz. If it is filling by water then to get resonance again, minimum length of water column is$ (V_{air} = 330 m/s)$ -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Depletion layer has (for an unbiased PN junction) -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
2
answers
Zener diode is used as -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Initially plane of coil is parallel to the uniform magnetic field B. In time $\Delta{t}$it makes to perpendicular to the magnetic field, then charge flows in $\Delta{t}$ depends on this time as -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The value of R for which power in it is maximum-
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
If the power dissipated in $5\Omega$ is 20 W then power dissipated in $4 \Omega$
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The effective capacity of the network between terminals A and B is
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The current in$8\Omega$ resistance is (See fig.)
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
For a body angular velocity $\overrightarrow{\omega}=\widehat{i}-2\widehat{j}+3\widehat{k}$ and radius vector is $\overrightarrow{r}=\widehat{i}+\widehat{j}+\widehat{k}$ then its velocity is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
When a spring is subjected to 4N force its length is a metre and if 5N is applied length is b metre. If 9N is applied its length is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
For moon, its mass is 1/81 of earth mass and its diameter is 1/3.7 of earth dia.If acceleration due to gravity at earth surface is $9.8 m/s ^{2}$ then at moon its value is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Rohini satellite is at a height of 500 km. and Insat-B is at a height of 3600 km. from surface of earth then relation between their orbital velocity ($V_R$,$V_1$) is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
2
answers
If radius of earth shrinks by 1% then for acceleration due to gravity :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A particle starts from rest with constant acceleration. The ratio of space-average velocity to the time average velocity is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
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