IUT ইসলামিক ইউনিভার্সিটি অব টেকনোলজি ভর্তি পরীক্ষা ২০১১-২০১২
97টি প্রশ্ন
- 51.
A marathon runner of mass 70 kg runs up the stairs to the top of the Sears tower which is 443 m high in 15 minutes. What is the average power output of the runner in horsepower (hp)?
- 52.
Light rays incident obliquely on the interface of air and water. The angle of incidence is 60°. What is the angle of refraction? The refractive indices of air and water are respectively, 1.34 and 2.4, respectively.
- 53.
ট্রানজিস্টর এর ক্ষেত্রে কোনটি সঠিক.?
- 54.
An ammeter with 1Ω internal resistance can measure 10 A. What would be the value of the shunt in order to measure 100 A using this ammeter?
- 55.
At what distance, an object must be placed in front of a concave mirror with a focal length of 12 cm so that the image would be 3 times the object?
- 56.
Two 10 C charge is placed on the surface of a sphere with a radius 10 cm. Find the potential at the surface.
- 57.
There capacitors 3µF, 3µF and 1 µF are connected in series and supplied with a 12 V source. What is the total charge stored?
- 58.
A glass flask of volume 200 cm3 is just filled with mercury at 2O°C. How much mercury will overflow when the temperature of the system is raised to 100°C? The coefficient of volume expansion of glass and mercury are 1.2 X 10-5(0C-1) and 18x10-5(°C-1), respectively.
- 59.
Assume that an ideal transformer produces 9 V in the secondary if 180 V is applied to the primary. If a 20-ohm resistance is connected across the secondary, what will be the primary current?
- 60.
When 5-liter water is heated by a 2100 W immersion of electric heater for 7 minutes the temperature of the water is raised from 30° C to 40°C. What is the mechanical equivalent of heat?
- 61.
The refractive index of an equilateral prism is 1.414. What is its minimum angle of deviation?
- 62.
The RMS value of an AC voltage is 220V and frequency is 50 Hz. What is the equation (sine form) of the voltage?
- 63.
Steel wire has a length of 2m and a cross-sectional area of 1mm2. When 20 N force is applied to the wire its length is increased by 2 x 10-4m. What is Young's modulus for steel?
- 64.
নিচের কোনটি সঠিক.?
- 65.
How much phase difference is created when an electromagnetic wave of frequency 1000 MHz travels a distance of 10 cm?
- 66.
হাইড্রোজেন পরমাণুর ভূমি অবস্থায় শক্তি - 13 .6 eV। ঋণাত্মক দিয়ে কী বুঝায়?
- 67.
Two steel wires of length 1.0 mm and 2.0 mm,respectively.If they are stretched by forces of 40 N and 8 N respectively, what is the ratio of their elongation?
- 68.
One gram of water becomes 1671 cm3 of steam when boiled at a pressure of 1 atm.The heat of veporization at this pressure is 2256Jg-1.What is the external work?
- 69.
In a Carnot engine the temperature of the source and sink are respectively 500K and 375K.If the engine consumes 252×104 J per cycle.What is the work done per cycle?
- 70.
A proton gains its mass twice of its rest mass while moving in an energy field.What is the velocity of the proton?The rest mass of the proton is 1.67*10-27 kg.
- 71.
The pilot of a private plane flies 20.0 km in a direction 60 ° north of east, then 30.0 km straight east, then 10.0 km straight north. How far the plane is from the starting point?
- 72.
An electron with velocity 4.8*107 m/s enters in a magnetic field with flux density of 0.32 T.What is the radius of the path of the electron?
- 73.
A coil of 300 turns has self-inductance of 10 mH.If the current flowing through the coil is 3 A,what will be magnetic flux?
- 74.
An overhead electrical conductor is carrying a current of 500 A. What is the magnitude of the magnetic field 1.5 m below the conductor?
- 75.
নিম্নে কোন তরঙ্গটি তড়িৎ অথবা চুম্বকীয় ক্ষেত্র দ্বারা গঠিত নয় ?
- 76.
A student can read a book when placed 8 cm in front his eyes.If he wants to read the book at distance equal to the least distance of distinct vision what would be the power of the lens?
- 77.
Against which axis does the vector 2i^−j^+2k^ 2 \hat{i} - \hat{j} + 2 \hat{k} produce an angle of cos−1(−13)? \cos^{- 1}{\left ( - \frac{1}{3} \right )} ?
- 78.
MSDS কী?
- 79.
A flask of volume 0.3 m3 contains a gas 'X' at a pressure of 60KPa.Another flask of volume 0.6m3 contains a gas 'Y' at a pressure of 94KPa.Flasks are connected by a stop cock. If the temperature remains constant and the stop cock is opened, the percentage volume of gas 'X' in the mixture is-
- 80.
The electronic configuration of an element is given as:1s2 2s2 2p6 3s2 3p6 3d5 4s1.The position of the element in the periodic table is-
- 81.
38.50 gm of dry salt is produced after evaporation of 1 liter of sea water. If the specific gravity of seawater is 1.03, then the percentage of dry substance in the sea water will be-
- 82.
একটি প্রথম ক্রম বিক্রিয়ার 15% সম্পন্ন হতে 20 মিনিট লাগলে 60%সম্পন্ন হতে কত সময় প্রয়োজন?
- 83.
The relation between Kp and Kc the reaction N2(g)+3H2(g)=2NH3 is-
- 84.
If pH of a solution decreases to 2 from 5, how many times will the concentration of H+H^+ increase or decrease?
- 85.
How much current is required to relese 10gm of iodine from a KI solution in 1 hour?
- 86.
A half cell has following data:E° for Zn =0.758:Zn/ZnCl2=(0.09M).The emf of the half cell at 55°C is-
- 87.
The half life of a first order reaction is 28 sec. In how many seconds will the concentration of the reactant be reduced to one eight of the initial value?
- 88.
What is the hybridization state of Xe in XeF2?
- 89.
What is the mostly used reagent in the analysis of inorganic salt?
- 90.
The reaction :3Cl-(aq)=2Cl-(aq)+ClO-13(aq) is knows as-
- 91.
Which one of the following produces urea after reacting with ammomia
- 92.
Following of which is produced after reacting CH3l with metallic sodium?
- 93.
Which of the following regent will not respond to iodoform test?
- 94.
Which is the following product is formed when ethanol is oxidized by a strong oxidizing agent?
- 95.
Which of the following compound forms red precipitate when treated with Fehling's solution?
- 96.
Which functional group is meta directing?
- 97.
Natural rubber is a polymer, its monomer is?