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Recent questions tagged 26
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The biodegradable polymer is :-
neet
chemistry
past papers
2019
26
asked
Jul 8, 2019
by
pady_1
1
answer
The equation of wave is : <br> $y = 1.0 \cos 2 \pi (\frac{t}{0.02} - \frac{x}{10})$ where $t$ is in second. The frequency of the wave is :
jeemain
physics
past papers
1998
26
asked
Dec 19, 2018
by
pady_1
0
answers
When heat energy of $1500 \;J$ is suplied to a gas at constant pressure, $2.1 \times 10^5\; N/m^2$, there was an increase in its volume equal to $2.5 \times 10^{-3}m^3$. The increase in its internal energy in joules is :
jeemain
physics
past papers
1999
26
asked
Dec 19, 2018
by
pady_1
0
answers
Four bodies $P, \; Q, \; R$ and $S$ are projected with equal velocities having angles of projection $15^{\circ}, \; 30^{\circ}, \; 45^{\circ}$ and $60^{\circ}$ with the horizontal respectively. The body having shortest range is :
jeemain
physics
past papers
2000
26
asked
Dec 19, 2018
by
pady_1
0
answers
Photoelectric emission is observed from a metallic surface for frequencies $v_1$ and $v_2$ of the incident light rays $(v_1 > v_2)$. If the maximum values of kinetic energy of the photoelectrons emitted in the two cases are in the ratio of $1 : k$, then the threshold frequency of the metallic surface is :
jeemain
physics
past papers
2001
26
asked
Dec 11, 2018
by
pady_1
0
answers
Which of the following is used in optical fibres ?
jeemain
physics
past papers
2002
26
asked
Dec 11, 2018
by
pady_1
0
answers
If the electric flux entering and leaving an enclosed surface respectively is $\phi_1$ and $\phi_2$, the electric charge inside the surface will be :
jeemain
physics
past papers
2003
26
asked
Dec 11, 2018
by
pady_1
0
answers
On interchanging the resistances, the balance point of a meter bridge shifts to the left by 10 cm. The resistance of their series combination is $1\; K \Omega$. How much was the resistance on the left slot before interchanging the resistances ?
jeemain
physics
past papers
2018
26
asked
Dec 11, 2018
by
pady_1
0
answers
A box contains 15 green and 10 yellow balls. If 10 balls are randomly drawn, one-by-one, with replacement, then the variance of the number of green balls drawn is
jeemain
math
past papers
2017
26
asked
Dec 11, 2018
by
pady_1
1
answer
A pipe open at both ends has a fundamental frequency f in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now :
jeemain
physics
past papers
2016
26
asked
Dec 11, 2018
by
pady_1
0
answers
A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm. If a 50 m tall tower at a distance of 1 km is observed through this telescope in normal setting, the angle formed by the image of the tower is $\theta$, then $\theta$ is close to :
jeemain
physics
past papers
2015
26
asked
Dec 11, 2018
by
pady_1
0
answers
A block of mass m is placed on a surface with a vertical cross section given by $y = x^3 /6$. If the coefficient of friction is 0.5, the maximum height above the ground at which the block can be placed without slipping is :
jeemain
physics
past papers
2014
26
asked
Dec 11, 2018
by
pady_1
0
answers
Which of the following exists as covalent crystals in the solid state ?
jeemain
chemistry
past papers
2013
26
asked
Dec 11, 2018
by
pady_1
1
answer
Let $X = \{1, 2, 3, 4, 5\}$. The number of different ordered pairs $(Y, Z)$ that can be formed such that $Y \subseteq X, Z \subseteq X$ and $ Y \cap Z$ is empty, is
jeemain
math
past papers
2012
26
asked
Dec 11, 2018
by
pady_1
0
answers
The electrostatic potential inside a charged spherical ball is given by $\phi = \alpha \rho^2 + b$ where r is the distance from the centre, a, b are constants. Then the charge density inside ball is
jeemain
physics
past papers
2011
26
asked
Dec 11, 2018
by
pady_1
0
answers
Out of the following, the alkene that exhibits optical isomerism is
jeemain
chemistry
past papers
2010
26
asked
Dec 11, 2018
by
pady_1
0
answers
In an experiment the angles are required to be measured using an instrument. 29 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale. If the smallest division of the main scale is half-a-degree ($=0.5^{\circ}$), then the least count of the instrument is
jeemain
physics
past papers
2009
26
asked
Nov 29, 2018
by
pady_1
0
answers
The statement $p \rightarrow(q \rightarrow p)$ is equivalent to
jeemain
math
past papers
2008
26
asked
Nov 29, 2018
by
pady_1
0
answers
A particle just clears a wall of height b at a distance $a$ and strikes the ground at a distance $c$ from the point of projection. The angle of projection is :
jeemain
math
past papers
2007
26
asked
Nov 29, 2018
by
pady_1
0
answers
The energy spectrum of $\beta$-particles (number N(E) as a function of $\beta$-energy E] emitted from a radioactive source is :
jeemain
physics
past papers
2006
26
asked
Nov 13, 2018
by
pady_1
0
answers
If $f$ is a real-valued differentiable function satisfying $|f(x) - f(y)| \leq (x-y)^2, x, y \in R$ and $f(0) = 0$, then $f(1)$ equals :
jeemain
math
past papers
2005
26
asked
Nov 5, 2018
by
pady_1
0
answers
A particle of mass 10 g is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them, to take the particle far away from the sphere : (you may take $G=6.67 \times 10^{-11}\; Nm^2/kg^2$)
jeemain
physics
past papers
2005
26
asked
Nov 5, 2018
by
pady_1
0
answers
The graph of the function $y = f(x)$ is symmetrical about the line $x=2$, then
jeemain
math
past papers
2004
26
asked
Nov 5, 2018
by
pady_1
0
answers
The kinetic energies of a planet in an elliptical orbit about the Sun, at position A, B and C are $K_A, K_B$ aand $K_C$, respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then <br>
neet
physics
past papers
2018
26
asked
Aug 21, 2018
by
pady_1
1
answer
Which one is the most acidic compound ?
neet
chemistry
past papers
2017
26
asked
Aug 21, 2018
by
pady_1
1
answer
Fog is a colloidal solution of :
neet
chemistry
past papers
2016
26
asked
Aug 21, 2018
by
pady_1
1
answer
What is the mole fraction of the solute in a 1.00 m aqueous solution ?
neet
chemistry
past papers
2015
26
asked
Aug 21, 2018
by
pady_1
0
answers
Two cities are 150 km apart. Electric power is sent from one city to another city through copper wires. The fall of potential per km is 8 volt and the average resistance per km is 0.5 $\Omega$ The power loss in the wire is:
neet
physics
past papers
2014
26
asked
Aug 20, 2018
by
pady_1
1
answer
The internal resistance of a 2.1 V cell which gives a current of 0.2A through a resistance of $10 \Omega$ is -
neet
physics
past papers
2013
26
asked
Aug 20, 2018
by
pady_1
1
answer
In the circuit shown the cells A and B have negligible resistance. For $V_A = 12V, R_1 = 500\Omega and R =100 \Omega$ the galvanometer (G) shows no deflection. The value of $V_B$ is
neet
physics
past papers
2012
26
asked
Aug 20, 2018
by
pady_1
1
answer
The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be : <br>
neet
physics
past papers
2011
26
asked
Aug 16, 2018
by
pady_1
1
answer
Six vectors, $\overrightarrow{a}$ through $\overrightarrow{f}$ have the magnitudes and directions indicated in the figure. Which of the following statements is true?
neet
physics
past papers
2010
26
asked
Jul 26, 2018
by
pady_1
1
answer
A wire of resistance 12 ohms per metre is bent to form a complete circle of radius 10 cm. The resistance between its two diametrically opposite points, A and B as shown in the figure, is :
neet
physics
past papers
2009
26
asked
Jul 26, 2018
by
pady_1
1
answer
Two simple Harmonic Motions of angular frequency 100 and 1000 rad $s^{–1}$ have the same displacement amplitude. The ratio of their maximum accelerations is -
neet
physics
past papers
2008
26
asked
Jul 26, 2018
by
pady_1
1
answer
Two condensers, one of capacity $C$ and the other of capacity $\frac{C}{2}$ , are connected to a V-volt battery, as shown- <br> <br> The work done in charging fully both the condensers is :
neet
physics
past papers
2007
26
asked
Jul 26, 2018
by
pady_1
1
answer
When photons of energy hv fall on an aluminium plate (of work function$E_0 $), photoelectrons of maximum kinetic energy K are ejected. If the frequency of the radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be
neet
physics
past papers
2006
26
asked
Jul 25, 2018
by
pady_1
1
answer
For the network shown in the figure the value of the current i is –
neet
physics
past papers
2005
26
asked
Jul 24, 2018
by
pady_1
1
answer
If $\lambda_{m}$ denotes the wavelength at which the radioactive emission from a black body at a temperature T K is maximum, then :-
neet
physics
past papers
2004
26
asked
Jul 24, 2018
by
pady_1
1
answer
A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved, the new value of the magnetic field is -
neet
physics
past papers
2003
26
asked
Jul 24, 2018
by
pady_1
1
answer
A block of mass 10 kg placed on rough horizontal surface having coefficient of friction µ = 0.5, if a horizontal force of 100 N acting on it nd then acceleration of the block will be : - ss
neet
physics
past papers
2002
26
asked
Jul 23, 2018
by
pady_1
2
answers
Which one among shows particle nature of light.
neet
physics
past papers
2001
26
asked
Jul 20, 2018
by
pady_1
1
answer
Two stationary sources each emitting waves of wave length $\lambda$. An observer moves from one source to other with velocity u. Then number of beats heared by him :
neet
physics
past papers
2000
26
asked
Jul 20, 2018
by
pady_1
1
answer
For a Rocket propulsion velocity of exhaust gases relative to rocket is 2 km/s. If mass of rocket system is 1000 kg, then the rate of fuel consumption for a rocket to rise up with acceleration $4.9 m/s^{2}$ will be :
neet
physics
past papers
1998
26
asked
Jun 15, 2018
by
pady_1
1
answer
The total of the ages of Amar, Akbar and Anthony is 80 years. What was the total of their ages three years ago ?
class5
math
olympiad
logical
analytical
reasoning
26
asked
Dec 31, 2015
by
pady_1
0
answers
The following bar chart shows the number of fruits in a shop, , There are _______ less guavas than plums.
class5
math
olympiad
data handling
26
asked
Dec 31, 2015
by
pady_1
0
answers
Find the cost of painting square board of side 44 cm at the rate of $ 7 per sq. cm.
class5
math
olympiad
measurements
26
asked
Dec 31, 2015
by
pady_1
0
answers
$\large\frac{1245}{1000}$ in decimal form gives us
class5
math
olympiad
fractions
decimals
26
asked
Dec 31, 2015
by
pady_1
0
answers
The air fare from Delhi to Hyderabad is $ 1500 plus a 10\% surcharge. Find the total air fare of a round trip.
class5
math
olympiad
computation
26
asked
Dec 31, 2015
by
pady_1
0
answers
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