Test 1: 20 ChaptersContact Number: 9667591930 / 8527521718Test 1: 20 ChaptersContact Number: 9667591930 / 8527521718Which of the following developed for the first time in Annelids?
(1) Cephalization
(2) Development of a true coelom
(3) Metameric segmentation
(4) Both 2 and 3
Both apical meristems and intercalary meristems:-
I. Are primary meristems
II. Appear early in plant life
III. Contribute to the formation of the primary plant body
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
A non-membrane bound organelle found exclusively in animal cells is:
1. Sphaerosome
2. Glyoxisome
3. Peroxisome
4. Centriole
Meiosis I:
1. is always followed by interphase
2. is not followed by any period of rest
3. is followed by a period of interkinesis
4. is sometimes followed by interphase
About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and:
(1) Phosphorous and sulphur
(2) Sulphur and magnesium
(3) Magnesium and sodium
(4) Calcium and phosphorous
Oxygen atoms form fcc unit cells with 'A' atoms occupying all tetrahedral voids and 'B' atoms occupying all octahedral voids. If atoms are removed from two of the body diagonals then the formula of the resultant compound formed is:
1. A4B4O7
2. A8B6O7
3. A8B8O7
4. A6B8O6
The equilibrium constant for the reaction is 4 X 10-4 at 200K. In the presence of a catalyst, the equilibrium is attained 10 times faster. Therefore, the equilibrium constant in presence of the catalyst at 200K is
1. 4 X 10-3
2. 4 X 10-4
3. 4 X 10-5
4. None of these
Hypochlorite disproportionate to give -
1. Cl- and Cl
2. Cl and Cl
3. Cl and Cl-
4. Cl and Cl-
What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n=4 to n=2 in the He+ spectrum?
1. n =4 to n=2
2. n = 3 to n=2
3. n =3 to n=1
4. n =2 to n=1
Ethanal reacts with HCN and the addition product so obtained is hydrolyzed to form a new compound. The compound shows
1. Optical isomerism
2. Geometrical isomerism
3. Tautomerism
4. Metamerism
A soldier is firing 20 bullets per second from his gun having a muzzle speed of 150 m/s. The mass of each bullet is 50 g. If they strike the wall and rebound with the same speed, then the force on the wall is
1. 75 N
2. 150 N
3. 300 N
4. 600 N
Equation of the wave is given by y = 0.4 sin(314t - 3.14x), where x and y are in meter and t is in second. The speed of the wave is :
1. 50 m/s
2. 100 m/s
3. 314 m/s
4. 3.14 m/s
| 1. | \(l_2+l_1\) | 2. | \(2(l_2-l_1)\) |
| 3. | \(5l_1-4l_2\) | 4. | \(5l_2-4l_1\) |
The minimum distance between a real object and screen such that a convex lens of focal length 20 cm can produce a real image on the screen is.
1. 20 cm
2. 40 cm
3. 80 cm
4. 60 cm