A vector magnitude a is rotated through an angle θ. What is the magnitude of the change in the vector ?
A car of mass 10 quintal moves in a horizontal circular path of radius 75 m. At an instant ,its speed is 54 km/hr and is increasing at a rate of 4 m/sec² . Then the acceleration of the car is ..
A body of mass m resting on a smooth horizontal plane starts moving under a constant force F. During its rectilinear motion, the angle θ between the direction of force and horizontal plane varies as θ=kx , where k is a constant and x is the distance travelled by the body from the initial position. What is velocity of the body..
Eight spherical rain drops of the same mass and radius are falling down with terminal speed of 6 m/sec2.If they coalesce to form a big drop, what will be the terminal velocity of the bigger drop?
Calculate the surface temperature of the planet, if the energy radiated by unit area in unit time is 5.67 * 10*10*10*10 watt
The temperature-entropy diagram of reversible engine cycle is given in the fig. Its efficiency is
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A point source emits sound equally in all directions in a non- absorbing medium. Two points P and Q are at a distances of 2m and 3 m respectively from the source. The ratio of the intensities is
1. Bowman’s glands are found in
3. Aurolium is
1 Adhesive organ of Cockroach leg.
2 It is present on tarsus
3 Sometimes it is covered by hair
4 Works like a suction cup
4. Release of urine caused by
- Contraction of smooth muscle of bladder
- Relaxation of urethral sphincter
- Relaxation of smooth muscle of bladder
- Contraction of urethral sphincter
5. which statements are correct
- Arachnoid in meninges is a mammalian character
- Tela choroidea is a part of Arachnoid mater
- CSF is formed in choroid plexus
- Brain is covered by menix
6. Cartilage of Santorini is present
8. Blood is not become acidic although it carries carbon dioxide because
9. The membrane stability in Prokaryotic cell is provided by
10. Glucose and Galactose are
Q.1) Please answer the following question
Calculate the pH of a 10-3M solution of Ba(OH)2 if it undergoes complete ionization
Q.2) An aqueous solution has molality 11.11 . Hence mole fraction of solute in the solution is;
Q.3) How fast is an electron moving if it has a wave length equal to the distance it travels in one second?
Q.4) If the radius of first Bohr orbit is x, then de Broglie wavelength of electron in 3rd orbit is nearly
Q.5. Please answer the following question
Among N2, H2, CH4 and NH3 which gas is deviated most from ideal behavior of gas
a) H
2b) NH
3
c) N
2
d)CH
4 Q.6) Please answer the following question
1 gm H2and X gm O2 gas exerts a total pressure of 5atm. At a given temperature partial pressure ofO2 gas is 4atm, O2 in the mixture is
Q.7) Please answer the following question
Find the moles of electron present in 30gm CO3=
Q.8) Among the following compounds, the decreasing order of reactivity towards electrophilic substitution is
Q.9) The correct order regarding the electronegativity of hybrid orbitals of carbon is
- Sp<sp2 <sp3
- Sp>sp2 <sp3
- Sp>sp2 >sp3
- Sp<sp2>sp3
Q.10) Among the trihalides of nitrogen which one is least basic→
