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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
In the circuit shown below the resistance are given in ohms and the battery is assumed ideal with emf equal to 3.0 volts. The resistor that dissipates the most power is - A. `R_(1)`B. `R_(2)`C. `R_(3)`D. `R_(4)` |
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Answer» Correct Answer - A |
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| 202. |
Thermal expansion of a solid is due to theA. symmetric characteristic of the inter atomic potential energy curve of the solidB. asymmetric characteristic of the inter atomic potential energy curve of the solidC. double well nature of the inter-atomic potential energy curve of the solidD. Rotational motion of the atoms of the solid |
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Answer» Correct Answer - B |
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| 203. |
A circular metallic ring of radius R has a small gap of width d. The coefficient of thermal expansion of the metal is α in appropriate units. If we increase the temperature of the ring by a amount ∆T, then width of the gap – (A) Will increases by an amount dα∆T (B) Will not change (C) Will increases by an amojnt (2π R -d)α∆T (D) Will decrease by an amount dα∆T |
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Answer» Correct option (A) Will increases by an amount dα∆T Explanation: Will increases by an amount dα∆T |
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| 204. |
In an experiment on simple pendulum to determine the acceleration due to gravity, a student measures the elngth of the thread as 632 cm and diameter of the pendulum bob as `2.256` cm. The student should take the lenght of the pendulum to beA. `64.328 `cmB. `64.36` cmC. `65.456` cmD. `65.5` cm |
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Answer» Correct Answer - B |
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| 205. |
Four students measure the height of a tower. Each student uses a different method and each measures the height many different times. The data for each are plotted below. The measurement with highest precision is (A) I (B) II (C) III (D) IV |
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Answer» Correct Option :- (A) I Explanation :- Precession mean every time reading is coming nearly same. |
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| 206. |
A circular metallic ring of radius R has a small gap of width d. The coefficient of thermal expansion of the metal is `alpha` in appropriate units. If we increase the temperature of the ring by a amount `DeltaT`, then width of the gap – (A) Will increases by an amount `dalphaDeltaT`A. Will increases by an amount `d alphaDeltaT`B. will not changeC. Will increases by an amjoint `(2pi R -d) alphaDeltaT`D. Will decreases by an amount `dalphaDeltaT` |
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Answer» Correct Answer - A |
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| 207. |
Four students measure the height of a tower. Each student uses a different method and each measures the height many different times. The data for each are plotted below. The measurement with highest precision is A. IB. IIC. IIID. IV |
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Answer» Correct Answer - A |
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| 208. |
A clay ball of mass m and speed v strikes another metal ball. of same mass m, which is at rest. They stick together after collision. The kinetic energy of the system after collision is –A. `mv^(2)//2`B. `mv^(2)//4`C. `2mv^(2)`D. `mv^(2)` |
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Answer» Correct Answer - B |
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| 209. |
Given below are three schematic graphs of potential energy V(r) versus distance r for three atomic particles : electron `(e^(-))`, proton `(p^(+))` and neutron (n), in the presence of a nucleus at the origin O. The radius of the nucleus is `r_(0)`. The scale on the V-axis may not be the same for all figures. The correct pairing of each graph with the corresponding atomic particle is - A. `(1,n), (2,p^(+)),(3,e^(-))`B. `(1,p^(+)), (2,e^(-)),(3, n)`C. `(1, e^(-)),(2, p^(+)),(3,n)`D. `(1,p^(+)),(2,n),(3,e^(-))` |
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Answer» Correct Answer - A |
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| 210. |
Due to transitions among its first three energy levels, hydrogenic atom emits radiation at three discrete wavelengths `lamda_(1), lamda_(2), " and " lamda_(3) (lamda_(1) lt lamda_(2) lt lamda_(3))`. ThenA. `lamda_(1)=lamda_(2)+lamda_(3)`B. `lamda_(1)+lamda_(2)=lamda_(3)`C. `1//lamda_(1)+1//lamda_(2)=1//lamda_(3)`D. `1//lamda_(1)=1//lamda_(2)+1//lamda_(3)` |
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Answer» Correct Answer - D |
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| 211. |
X g of ice at 0 `.^(@)C` is added to 340 g of water at `20^(@)C.` The final tempeature of the resultant mixture is 5 `.^(@)C.` The value of X (in g) is closest to [Heat of fusion of ice `= 333 J//g,` Specific heat of water `= 4.184 J//g. K`]A. `80.4`B. `52.8`C. `120.6`D. `60.3` |
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Answer» Correct Answer - D Use the concept of calorimetry and solve to get the answer. |
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| 212. |
The pH of 10–8 M HCl solution is – (A) 8 (B) close to 7 (C) 1 (D) 0 |
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Answer» The pH of 10–8 M HCl solution is close to 7. |
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| 213. |
Gigantism and acromegaly are due to defects in the function of the following gland – (A) adrenals (B) thyroid (C) pancreas (D) pituitary |
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Answer» Correct option (D) pituitary Explanation: Acromegaly is syndrome that results when anterior Pituitary gland produces excess growth hormone after epiphyseal plate closure at puberty Gigantism is a condition characterized by excessive growth and height significantly above average. This condition is caused by over production growth hormone in childhood before the long bone epiphyses closed. |
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| 214. |
Amphibian heart isA. two chamberedB. three chamberedC. four chamberedD. three and half chambered |
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Answer» Correct Answer - B The amphibian heart is 3 chambered having 2 auricles+one ventricle |
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| 215. |
Gigantism and acromegaly are due to defects in the function of the following gland-A. adrenalsB. thyroidC. pancreasD. pituitary |
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Answer» Correct Answer - D Acromegaly si syndrome that results when anterior Pituitary gland produces excess growth hormone after epiphyseal plate closure at puberty Gigantism is a condition characterized by excessive growth and heigth significantly above ayerage. This condition is caused by over production growth hormone in childhood before the long bone epiphyses closed |
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| 216. |
Which one of the following organelles can synthersize some of its own proteins ?A. lysozomeB. golgi apparatusC. vacuoleD. mitochondrion |
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Answer» Correct Answer - D Mitochondria is called a semi-autonomous organelle, having its own DNA, RNA and 70 S type of ribosomes, by which it can synthesize some of its proteins. |
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| 217. |
An example of nastic movement ?A. Folding up of the leaces of mimosa pudicaB. Climbing of tendrilsC. Growth of roots from seedsD. Growth of pollen tube towards the ovule |
| Answer» Correct Answer - A | |
| 218. |
Glcoproteins are formed in which ONE of the following organelles ?A. PeroxisomeB. LysosomeC. Golgi apparatusD. Mitchondria |
| Answer» Correct Answer - C | |
| 219. |
An example of nastic movement (external stimulus-dependent movement) in plants is (A) folding-up of the leaves of Mimosa pudica (B) climbing of tendrils (C) growth of roots from seeds (D) growth of pollen tube towards the ovule |
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Answer» Correct option (A) folding-up of the leaves of Mimosa pudica Explanation: Nastic movement are non directional movement which is depend on external stimules in plant. This movement can be due to changes in turgor or changes in growth. Example : Folding of leaf of mimosa pudica by touching. Diurnal movement of leaves Response of insectivorous plant such as venus fly trap. |
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| 220. |
The first enzyme that the food encounters in human digestive systrm is ?A. PepsinB. TrypsinC. ChymotrypsinD. Amylase |
| Answer» Correct Answer - D | |
| 221. |
Glycoproteins are formed in which ONE of the following organelles? (A) Peroxisome (B) Lysosome (C) Golgi apparatus (D) Mitochondria |
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Answer» Correct option (C) Golgi apparatus Explanation: Golgi apparatus is the important site of formation of glycoprotein & glycolipid. |
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| 222. |
Which ONE of the following organisms respire through the skin ?A. Bule whaleB. SalamanderC. platypusD. Peacock |
| Answer» Correct Answer - B | |
| 223. |
Which ONE of the following human cells lacks a nucleus ?A. NeutrophilB. NeuronC. Mature erythrocyteD. Karatinocyte |
| Answer» Correct Answer - C | |
| 224. |
The first enzyme that the food encounters in human digestive system is (A) pepsin (B) trypsin (C) chymotrypsin (D) amylase |
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Answer» Correct option (D) amylase Explanation: In saliva α amylase is required for intinal first digestion of starch in oral cavity. |
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| 225. |
Which ONE of the following humans cells lacks a nucleus? (A) Neutrophil (B) Neuron (C) Mature erythrocyte (D) Keratinocyte |
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Answer» Correct option (C) Mature erythrocyte Explanation: Prokaryotic cell, mature erythrocyte (animal) mature sieve tube cell of phloem are example of nucleus less cell.T |
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| 226. |
Which ONE of the following organisms respire through the skin? (A) Blue whale (B) Salamander (C) Platypus (D) Peacock |
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Answer» The Correct option is (B) Salamander |
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| 227. |
Which ONE of the following statements is TRUE about trypsinogen? (A) It is activated by enterokinae (B) It is activated by renin (C) It is activated by pepsin (D) It does not need activation |
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Answer» Correct option (A) It is activated by enterokinae Explanation: Trypisonogen is an inactive enzyme produced from pancreatic juice, which get activated by the action of enterokinase produced from intestinal gland in small intestine into its active form trypsin. |
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| 228. |
Which ONE of the following statements is True about trypsinogen ?A. it is activated by enterokinaseB. It is activated by reninC. It is activated by pepsinD. It does not need activation |
| Answer» Correct Answer - A | |
| 229. |
Tendrils are modifications of (A) stem or leaf (B) stem only (C) leaf only (D) aerial roots only |
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Answer» Correct option (A) stem or leaf Explanation: In plant tendril is a modification of stem, leaves or petiole with a thread like coiled shape. Function of tendril is for support, climbing, attachment, cellular invasion by parasitic plant. Example : Leaves modified into tendril in pea for climbing. Stem tendril which develop from axillary bud in cucumber, pumpkins, watermelon and grapevines for climbing. |
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| 230. |
Which ONE of the following proteins does NOT play a role in skeletal muscle contraction? (A) Actin (B) Myosin (C) Troponin (D) Microtubule |
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Answer» Correct option (D) Microtubule Explanation: For muscular contraction actin, myosin (contractile protein) and troponin, tropomyosin (regulatory protein) essential for muscular contraction. |
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| 231. |
Which one of the following reaction is catalyxed by high-energy ultraviolet radiation in the stratosphere ?A. `O_(2)+OtoO_(3)`B. `O_(2)toO+O`C. `O_(3)+O_(3)to3O_(2)`D. `O+OtoO_(2)` |
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Answer» Correct Answer - BThe second reaction occurs in presence of UV. Because O3 is first converted into O2 molecules and free O atoms with UV Rays. 1 free O atom combines with O2 molecule along with UV rays to form Ozone.O+O2 gives O3, not O2+O gives O3. Hence, (2) is appropriate. Thank you... |
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| 232. |
Which ONE of the following combinations of biomolecules is present in the ribosomes? (A) RNA, DNA and protein (B) RNA, lipids and DNA (C) RNA and protein (D) RNA and DNA |
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Answer» Correct option (C) RNA and protein Explanation: Ribosome are granular structure smallest cell organelle. Composed of RNA & protein only. |
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| 233. |
Which one of the following proteins does not play a role in skeletal muscle contraction?A. ActinB. MyosinC. TroponinD. Microtuble |
| Answer» Correct Answer - D | |
| 234. |
Which one of the following combinstions of biomolecules is present in the ribosomes ?A. RNA, DNA and proteinB. RNA lipids and DNAC. RNA and proteinD. RNA and DNA |
| Answer» Correct Answer - C | |
| 235. |
One mole of ideal gas undergoes a linear process as shown in figure below. Its temperature expressed as function of volume V is - A. `(P_(0)V_(0))/(R )`B. `(P_(0)V)/(R )`C. `(P_(0)V)/(R )(1-(V)/(V_(0)))`D. `(P_(0)V_(0))/(R )(1-((V)/(V_(0)))^(2))` |
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Answer» Correct Answer - C |
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| 236. |
A planet is orbiting the sun is an elliptical orbit. Let U denote the potential energy and K denote the kinetic energy of the planet at an arbitrary point on the orbit. Choose the correct statement -A. `K lt |U|` alwaysB. `K gt |U|` alwaysC. `K=|U|` alwaysD. `K=|U|` for two positions of the planet in the orbit |
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Answer» Correct Answer - A |
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| 237. |
In the figure below, PQRS denotes the path followed by a ray of light as it travels through three media in succession. The absolute refractive indices of the media are µ1, µ2 and µ3 respectively. (The line segment RS' in the figure is parallel to PQ). (A) µ1 > µ2 > µ3 (B) µ1 = µ3 < µ2 (C) µ1 < µ2 < µ3 (D) µ1 < µ3 < µ2 |
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Answer» Correct option (D) µ1 < µ3 < µ2 Explanation: µ1 < µ3 < µ2 |
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| 238. |
Let the electrostatic field E at distance r from a point charge q not be an inverse square but, instead an inverse cubic, e.g. `vecE=k(q)/(r^(3))hatr` Here k is a constant. Consider the following two statements (i) Flux through a spherical surface enclosing the charge is `phi = "qenclosed" //in0` (ii) A charge placed inside uniformly charged shell will experience a force. Choose the correct option.A. Only (i) is validB. Only (ii) is validC. Both (i) and (ii) are invalidD. Both (i) and (ii) are valid |
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Answer» Correct Answer - B |
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| 239. |
A light beam travelling along the x axis with planar wavefront is incident on a medium of thickness t. In the region, where light is falling the refractive index can be taken to be varying such that `(dn)/(dy)gt0`. The light beam on the other side of the medium will emergeA. parallel to the x-axisB. bending downwardC. bending upwardD. split into two or more beams |
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Answer» Correct Answer - C |
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| 240. |
A ray of light originates from inside a glass slab and is incident on its inner surface at an angle θ as shownIn this experiment the location x of the spot where the ray hits the screen is recorded. Which of the following correctly shows the plot of variation of x with the angle θ ?(A) A (B) B (C) C (D) D |
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Answer» Correct Option :- (A) A Explanation :- This is case of Total Internal Reflector (90– θ) is incident angle. As θ increases thus incident angle decreaes. Initially Ray will be Reflected at θC angle will be TIR after words Refraction takes place |
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| 241. |
A ray of light originates from inside a glass slab and is incident on its inner surface at an angle `theta` as shown, In this experiment the location x of the spot where the ray hits the screen is recorded. Which of the following correctly shows the plot of variation of x with the angle `theta`? A. AB. BC. CD. D |
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Answer» Correct Answer - A |
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| 242. |
A long horizontal mirror is next to a vertical screen (See figure). Parallel light rays are falling on the mirror at an angle `alpha` from the vertical. If a vertical object of height h is kept on the mirror at a distance `d gt h tan (alpha)`. The length of the shadow of the object on the screen would be A. h/2B. `htan (alpha)`C. 2hD. 4h |
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Answer» Correct Answer - C |
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| 243. |
A spherical marble of radius 1 cm is stuck in a circular hole of radius slightly smaller than its own radius (for calculation purpose, both can be taken same) at the bottom of a bucket of height 40 cm and filled with water up to 10 cm. If the mass of the marble is 20 g, the net force on the marble due to water is close to A. `0.02 `N upwardB. `0.02` N downwardC. `0.04` N upwardD. `0.04` N downward |
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Answer» Correct Answer - D |
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| 244. |
During meiosis crossing over occurs at :A. lepopteneB. zygoteneC. pachyteneD. diplotene |
| Answer» Correct Answer - C | |
| 245. |
Two plates each of the mass m are connected by a massless spring as shown A weight W is put on the upper plate which compresses the spring further. When W is removed, the entire assembly jumps up. The minimum weight W needed for the assembly to jump up when the weight is removed is just more than - A. mgB. 2mgC. 3mgD. 4mg |
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Answer» Correct Answer - B |
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| 246. |
In the adjacent figures, which has the shortest path- A. Fig 1B. Fig 2C. Fig 3D. Fig 4 |
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Answer» Correct Answer - B A (1,1),B(2,3),C(5,2),D(3,0) For Fig 1 `AB=sqrt(1+4)=sqrt5` `BC=sqrt(9+1)=sqrt(10)` `CD=sqrt(4+4)=sqrt(8)` then `AB+BC+CD+=8.22` For Fig 2 `AB=1,BC=2,CD=sqrt(10),DE=sqrt(8)` `AB+BC+CD+DE=8.99` Is max distance For Fig 3 `AB=sqrt(5),BC=2,CD=sqrt(5),DE=sqrt(5)` `AB+BC+CD+DE=8.70` For Fig 4 `AB=1,BC=2,CD=sqrt(13),DE=sqrt(5)` `AB+BC+CD+DE=8.841` |
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| 247. |
Let a, b, c, d be numbers in set {1, 2, 3, 4, 5, 6} such that the curves `y=2x^(3)+ax+b` and `y=2x^(3)+cx+d` have no point in common. The maximum possible value of `(a-c)^(2)+b-d` is- |
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Answer» Correct Answer - B `y = 2x^(3)+ax+b" "y=2x^(3)+cx+d` No solution `2x^(3)+ax+bne2x^(3)+cx+d` `ax+bnecx+d" for no real x"` `(a-c)xned-b` `xne(d-b)/(a-c)" "a = c"` `(a-c)^(2)+(b-d)=0+6-1=5` |
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| 248. |
The lattice energies of NaCl, NaF, KCl and RbCl follow the orderA. `KClltRbClltNaClltNaF`B. `NaFltNaClltKClltRbCl`C. `RbClltKClltNaClltNaF`D. `NaClltRbClltNaFltKCl` |
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Answer» Correct Answer - C `uarrUprop(1)/("size"darr)` |
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| 249. |
The role of haemoglobin is toA. store oxygen in musclesB. transport oxygen to different parts of the bodyC. convert CO to `CO_(2)`D. convert `CO_(2)` into carbonic acid |
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Answer» Correct Answer - B Haemoglobin is oxygen carrier. |
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| 250. |
The role of haemoglobin is to (A) store oxygen in muscles (B) transport oxygen to different parts of the body (C) convert CO to CO2 (D) convert CO2 into carbonic acid |
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Answer» Correct option (B) transport oxygen to different parts of the body Explanation: The role of haemoglobin is to transport oxygen to different parts of the body. |
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