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Recent questions tagged physics
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A light of amplitude A and wavelength ? is incident on a metallic surface, then saturation current flows is proportional to (assume cut off wave length = ${\lambda_{0}}$) -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
0
answers
The current conduction in a discharge tube is due to -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
0
answers
The energy and capacity of a charged parallel plate capacitor are E and C respectively. Now a dielective slab of $\epsilon_r=6$is inserted in it then energy and capacity becomes (Assuming charge on plates remains constant)
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Frequency of simple pendulum in a free falling lift is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A spring elongated by length 'L' when a mass 'M' is suspended to it. Now a tiny mass 'm' is attached and then released, its time period of oscillation is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Two springs A and B $(K_A = 2 K_B)$ are stretched by same suspended weights then ratio of workdone in stretching is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The amplitude of a S.H.O. reduces to 1/3 in first 20 secs. then in first 40 sec. its amplitude becomes -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The truth table for the following network is :
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
For a vibration magnetometer, the time period of suspended bar magnet can be reduced by -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
In millikan oil drop experiment a charged drop falls with a terminal velocity V. If an electric field E is applied vertically upwards it moves with terminal velocity 2V in upward direction. If electric field reduces to E/2 then its terminal velocity will be -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
2
answers
The terminal potential difference of a cell is greater than its emf when -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
For a inductor coil L = 0.04 H, then workdone by source to establish a current of 5A in it is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
2
answers
Eight equals charged tiny drops are combined to form a big drop. If the potential on each drop is 10V then potential of big drop will be -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A current carrying coil (I = 5A, R = 10 cm.) having 50 number of turns find field at its centre-
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
If 100N force is applied to 10 kg. block as shown in diagram then acceleration produced for slab - $100 N \mu S = 0.6 10 kg. \mu K = 0.4 40 kg.$ Slab
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
2
answers
For a particle displacement time relation is $t=\sqrt{x}+3$. Its displacement when its velocity is zero -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
Two particles separated at a horizontal distance X as shown in fig. they projected at the same line as shown in fig. with different initial speeds. The time after which the horizontal distance between them become zero
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The K.E. of a person is just half of K.E. of a boy whose mass is just half of tha person. If person increases its speed by 1 m/s, then its K.E. equals to that of boy then initial speed of person was -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
A body starts falling from height 'h' and travels distance h/2 during last second of motion then time of flight is (In second) -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
The error in measurement of radius of a sphere is 0.1% then error in its volume is -
neet
physics
past papers
1999
asked
Jun 21, 2018
by
pady_1
1
answer
What is the flux coming out from a positive unit charge placed in air?
physics
asked
Jun 21, 2018
by
dasm95451
1
answer
A solid spherical region having a spherical cavity whose diameter r is equa
physics
asked
Jun 21, 2018
by
tinkugarai2016
1
answer
A ball slides off a horizontal table top 1.25 m high, with a velocity of 4
physics
asked
Jun 21, 2018
by
rudansh
1
answer
Wavelength of the Balmer H-first line is 6565calculate the wavelength of H-
physics
asked
Jun 21, 2018
by
patelmaitri1112002
1
answer
the side of a square is increasing at a rate of 0.2 cm/s . the rate of incr
physics
asked
Jun 21, 2018
by
dhakadankit321
1
answer
To a man walking at the rate of 3km/hour the rain appears to fall verticall
physics
asked
Jun 21, 2018
by
rudansh
1
answer
In a hydroelectric power station 1000 kg of water is allowed to drop throug
physics
asked
Jun 21, 2018
by
kushanshah169
1
answer
The maximum no.of sub levels,orbitals,and electrons in N shell of an atom
physics
asked
Jun 21, 2018
by
varapenudota123
1
answer
The resistance of conductor is given by R=V/R Where V=(200+or-5)V and I=(20
physics
asked
Jun 20, 2018
by
omkarkamvle0770
1
answer
Wavelength of the light =678 nm distance between the slits = 0.35 mm distan
physics
asked
Jun 20, 2018
by
divyaravi2908
1
answer
Validity of law of quantization of charge is limited. Explain.
physics
asked
Jun 20, 2018
by
sruthitvm26
1
answer
A uniform shell explodes into three equal parts to of the parts fly of perp
physics
asked
Jun 20, 2018
by
kaminikesathi
1
answer
An electron of mass m and charge e accelerated through a potential differen
physics
asked
Jun 20, 2018
by
aradhya3feb2003
1
answer
three point charges q 2q and -3q are placed in three corners of an equilate
physics
asked
Jun 19, 2018
by
Satyaprakash_friends
0
answers
An object of a telescope is an achromatic of focal length 90cm .the magnitu
physics
asked
Jun 19, 2018
by
shalini13phy
0
answers
P is moving in a straight line with uniform velocity Q is moving in a strai
physics
asked
Jun 19, 2018
by
charlesjehanabad
1
answer
How does a capacitor store energy?Derive an expression for the energy store
physics
asked
Jun 19, 2018
by
roosveltkikon905
1
answer
derive an expression for parallel plate capacitor of capacitance C.
physics
asked
Jun 19, 2018
by
roosveltkikon905
1
answer
What is the capacitance of 1 M long HiFi cable where the centre conductor i
physics
asked
Jun 19, 2018
by
riiyasingh0301
1
answer
a wire of length of l is shaped into to ancircle and then in such a way tha
physics
asked
Jun 19, 2018
by
jyoshna645
0
answers
What id pascal and define it?
physics
asked
Jun 18, 2018
by
sushmithaashok6
1
answer
In YDSE distance between slits and screen is 1.5 m when light of wavelength
physics
asked
Jun 18, 2018
by
dhairyamishra2070
0
answers
N identical capacitors are joined in series and the combination is given a
physics
asked
Jun 18, 2018
by
rishabhomar845
1
answer
Home >> EAMCET >> Physics A body is thrown vertically upward from a poi
physics
asked
Jun 18, 2018
by
manajipetkavitha
0
answers
The minimum stopping potential required for an electron which was emitted f
physics
asked
Jun 18, 2018
by
arpitasingh27974
0
answers
Dimensional farmula of capacity Dimensional farmula of capacity
physics
asked
Jun 18, 2018
by
divyanshumukhiya143
1
answer
the maximum kinetic energy of emitted photoelectrons is
physics
asked
Jun 18, 2018
by
ayeshasadaqat823
1
answer
a primary coil and a secondary coil is paced closed to each other
physics
asked
Jun 18, 2018
by
ayeshasadaqat823
1
answer
the magnitude of the resultant of the two forces is F the magnitude of each
physics
asked
Jun 18, 2018
by
ayeshasadaqat823
1
answer
four resistor A,B,C and Dform a wheatstone bridge is balanced
physics
asked
Jun 18, 2018
by
ayeshasadaqat823
0
answers
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