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Recent questions tagged t1
Questions
In photosynthesis process plants absorbs water molecules, through their roots and store it in cells, when the sunlight hits water molecules the water splits into
cbsc
class 3
olympiad
science
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
How are bricks made?
cbsc
class 3
olympiad
science
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
Which of the following eats mosquito and other insects?
cbsc
class 3
olympiad
science
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
Which of the following come under the category of leaves?
cbsc
class 3
olympiad
science
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
Which of the following eaten after cooking?
cbsc
class 3
olympiad
science
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
In trunk of trees holes I make, Hidden insects i intake, tuk-tuktuk i work all day. What is the bird?
cbsc
class 3
science
olympiad
t1
asked
Oct 28, 2017
by
priyanka.c
1
answer
The bulk modulus of a sphericaI object is B. lf it is subjected to , uniform pressure 'p' , the fractional decrease in radius is
neet
2017
physics
past paper
t1
q32
asked
Oct 27, 2017
by
meena.p
0
answers
In an electromagnetic wave in free space the root mean square value of the electric field is $E_{rms} = 6V/m.$ The peak value of the magnetic field is:
neet
2017
physics
past paper
t1
q31
asked
Oct 27, 2017
by
meena.p
0
answers
Two astronauts are floating in gravitational free space after having lost contact with their space ship. The two will :
neet
2017
physics
past paper
t1
q30
asked
Oct 27, 2017
by
meena.p
0
answers
An arrangement of three parallel straight wires placed perpendicular to plane of papei carrying same current'I' along the same direction is shown in the figure . Magnitude of force per unit length on the middle wire'B' is given by
neet
2017
physics
past paper
t1
q29
asked
Oct 27, 2017
by
meena.p
0
answers
If $\theta_1$ and $\theta_2$, be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip 0 is given by :
neet
2017
physics
past paper
t1
q28
asked
Oct 27, 2017
by
meena.p
0
answers
A carnot engine having an efficiency of $\large\frac{1}{10}$ as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energv absorbed from the reservoir at lower temperature is :
neet
2017
physics
past paper
t1
q27
asked
Oct 27, 2017
by
meena.p
0
answers
Which of the following statements are correct ?
neet
2017
physics
past paper
t1
q26
asked
Oct 26, 2017
by
meena.p
0
answers
The acceleration due to gravity at a height I km above the earth is the same as at a depth d below the , surface of earth. Then :
neet
2017
physics
past paper
t1
q25
asked
Oct 26, 2017
by
meena.p
0
answers
The given electricaI network is equivalent to
neet
2017
physics
past paper
t1
q24
asked
Oct 25, 2017
by
meena.p
0
answers
A spring of force constant k is cut into lengths of ratio $I : 2 :3$ . They are connected in series and the, new force constant is 'K'.- Then they are connected is parallel and force constant is k". Then k, : k, is
neet
2017
physics
past paper
t1
q23
asked
Oct 25, 2017
by
meena.p
0
answers
Which one of the following represents; forward bias diode?
neet
2017
physics
past paper
t1
q22
asked
Oct 11, 2017
by
meena.p
0
answers
In a common emitter transistor amplifier the audio signal voltage across the collector is $3 \Omega$. If current gain is 100 and the base resistance is $2 k \Omega$ , the voltage and power gain of the amplifier is :
neet
2017
physics
past paper
t1
q21
asked
Oct 11, 2017
by
meena.p
0
answers
A point Q lies on the perpendicular bisector of an electrical dipole of dipole moment p. If the distance of Q from the dipole is r (much larger than the size of the dipole), then the electric field at Q is proportional to :
neet
1998
physics
past paper
t1
q49
asked
Oct 10, 2017
by
priyanka.c
0
answers
A particle, with restoring force proportional to displacement and resisting force proportional to velocity is subjected to a force $F \sin ωt$. If the amplitude of the particle is maximum for $ω = ω_1$ and the energy of the particle maximum for $ω = ω_2$, then :
neet
1998
physics
past paper
t1
q50
asked
Oct 10, 2017
by
priyanka.c
0
answers
We consider a thermodynamic system. If $\Delta U$ represents the increase in its internal energy and $W$ the work done by the system, which of the following statement is true?
neet
1998
physics
past paper
t1
q48
asked
Oct 10, 2017
by
priyanka.c
2
answers
Common emitter circuit is used as amplifier, its current gain is 50. If input resistance is $1 K \Omega$ and input voltage is 5 volt then output current will be :
neet
1998
physics
past paper
t1
q47
asked
Oct 10, 2017
by
priyanka.c
0
answers
The cause of potential barrier in a P-N junction diode is :
neet
1998
physics
past paper
t1
q46
asked
Oct 10, 2017
by
priyanka.c
1
answer
Radiation energy corresponding to the temperature T of the sun is E. If its temperature is doubled, then its radiation energy will be :
neet
1998
physics
past paper
t1
q45
asked
Oct 10, 2017
by
priyanka.c
0
answers
A rigid rod is placed against the wall as shown in figure. When its velocity of lower end is $10 \;ms^{-1}$ and its base makes an angle $\alpha = 60^{\circ}$ with horizontal, then the vertical velocity of its end B will be :
neet
1998
physics
past paper
t1
q44
asked
Oct 10, 2017
by
priyanka.c
0
answers
For nuclear reaction : <br> $_{92}U^{235} + _0n^1 \to _{56}Ba^{144} + ......... + 3_0n^1$
neet
1998
physics
past paper
t1
q43
asked
Oct 10, 2017
by
priyanka.c
0
answers
If a source moves perpendicularly from listener then the change in frequency will be
neet
1998
physics
past paper
t1
q42
asked
Oct 10, 2017
by
priyanka.c
0
answers
Turn ratio of a step-up transformer is $1 : 25$. If current in load coil is $2A$, then the current in primary coil will be :
neet
1998
physics
past paper
t1
q41
asked
Oct 10, 2017
by
priyanka.c
0
answers
Electric field at the equator of a dipole is E. If strength and distance is now doubled then the electric field will be :
neet
1998
physics
past paper
t1
q40
asked
Oct 10, 2017
by
priyanka.c
0
answers
In the Bohr model of H-atom, an electron (e) is revolving around a proton (p) with velocity v, if r is the radius of orbit and m is mass and $\varepsilon_0$ is vacuum permittivity, the value of v is :
neet
1998
physics
past paper
t1
q39
asked
Oct 10, 2017
by
priyanka.c
1
answer
A charge q is placed in an uniform electric field E. If it is released, then the K.E of the charge after travelling distance y will be :
neet
1998
physics
past paper
t1
q38
asked
Oct 10, 2017
by
priyanka.c
0
answers
A car is moving with velocity V. If stop after applying break at a distance of 20 m. If velocity of car is doubled, then how much distance it will cover (travel) after applying break :
neet
1998
physics
past paper
t1
q37
asked
Oct 10, 2017
by
priyanka.c
0
answers
Two cars moving in opposite directions approach each other with speed of 22 m/ s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz . The frequency heard by the driver of the second car is [velocity of sound 340 m/s]
neet
2017
physics
past paper
t1
q20
asked
Oct 10, 2017
by
meena.p
0
answers
A physical quantity of the dimensions of length that can be formed out of c, G and $\large\frac{e^2}{4 \pi \in_0}$ is [c is velocity of light, G is universal constant of gravitation and e is charge ] :
neet
2017
physics
past paper
t1
q19
asked
Oct 10, 2017
by
meena.p
0
answers
O is the centre of an equilateral triangle ABC $F_1, F_2, F_3$ are three forces acting along the sides AB, BC and AC as shown in fig.What should be the magnitude of $F_3$ so that total torque about O is zero :
neet
1998
physics
past paper
t1
q27
asked
Oct 10, 2017
by
priyanka.c
1
answer
The photo electric threshold wave length of silver is $3250 \times 10^{-10}\;m$ . The velocity of the electrons ejected from a silver surface by ultraviolet light of wavelength $2536 \times 10^{-10}\;m$ is : (Given $h=4.14 \times 10^{-10} \;eVs$ and $c= 3 \times 10^{8} \;ms^{-1})$
neet
2017
physics
past paper
t1
q18
asked
Oct 10, 2017
by
meena.p
0
answers
A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system :
neet
2017
physics
past paper
t1
q17
asked
Oct 10, 2017
by
meena.p
0
answers
Thermodynamic processes are indicated in the following diagram.
neet
2017
physics
past paper
t1
q16
asked
Oct 10, 2017
by
meena.p
0
answers
A particle executes linear simple harmonic motion with an amplitude of 3 cm. When the particle is at 2 cm from the mean position, the magnitude of its velocity is equal to that of its acceleration.- Then its time period in seconds is
neet
2017
physics
past paper
t1
q15
asked
Oct 10, 2017
by
meena.p
0
answers
Young's double slit experiment is first performed in air and then in a medium other than air. It is found that 8th bright fringe in the medium lies where 5th dark fringe lies in air. The refractive index of the medium is nearly
neet
2017
physics
past paper
t1
q14
asked
Oct 10, 2017
by
meena.p
0
answers
The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is
neet
2017
physics
past paper
t1
q13
asked
Oct 10, 2017
by
meena.p
1
answer
The diagrams below, shown, regions of equipotentials : A positive charge is moved from A to B in each diagram.
neet
2017
physics
past paper
t1
q12
asked
Oct 10, 2017
by
meena.p
0
answers
Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are $K_1$ and $K_2$. The thermal conductivity of the composite rod will be
neet
2017
physics
past paper
t1
q11
asked
Oct 10, 2017
by
meena.p
0
answers
In hot wire Ammeter due to flowing of current temperature of wire is increased by $5^{\circ} C$. If value of current is doubled,then increases in temperature will be :
neet
1998
physics
past paper
t1
q36
asked
Oct 9, 2017
by
priyanka.c
0
answers
A standing wave having 3 nodes and 2 antinodes is formed between 1.21Å distance then the wavelength is :
neet
1998
physics
past paper
t1
q35
asked
Oct 9, 2017
by
priyanka.c
0
answers
If the frequency of a spring is n after suspending mass M, now 4M mass is suspected from spring then the frequency will be :
neet
1998
physics
past paper
t1
q34
asked
Oct 9, 2017
by
priyanka.c
0
answers
For the diffraction from a crystal with $\lambda = 1 Å$ and Bragg's angle $\theta = 60^{\circ}$, then for the second order diffraction $'d'$ will be
neet
1998
physics
past paper
t1
q33
asked
Oct 9, 2017
by
priyanka.c
0
answers
Two long parallel wires are at a distance of 1m. If both of them carry one ampere of current in same direction, then the force of attraction on unit length of the wire will be :
neet
1998
physics
past paper
t1
q32
asked
Oct 9, 2017
by
priyanka.c
1
answer
A ball is dropped from a height of 5 m, if it rebound upto height of 1.8 m, then the ratio of velocities of the ball after and before rebound is :
neet
1998
physics
past paper
t1
q31
asked
Oct 9, 2017
by
priyanka.c
0
answers
When three identical bulbs are connected in series, the consumed power is 10W. If they are now connected in parallel then the consumed power will be :
neet
1998
physics
past paper
t1
q30
asked
Oct 9, 2017
by
priyanka.c
0
answers
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