IUT ইসলামিক ইউনিভার্সিটি অব টেকনোলজি ভর্তি পরীক্ষা ২০১০-২০১১
88টি প্রশ্ন
- 51.
A progressive wave is described by the following equation : y= 10 sin(140πt - 0.08πx) . Where units of x and y are cm and units of t is in second. Find the frequency in Hz.
- 52.
The electric potential at the surface of an atomic nucleus (z = 50) of radius 9.0×10-13 cm is -
- 53.
A current of 4.8A4.8A flows through an automobile headlight. How many coulombs of charge flow through in two hours ?
- 54.
A heater is connected with a line of 120 volt and the power absorbed is 1000 watt.How much resistance should be added to reduce the 10% of power ?
- 55.
In a house an electric meter is rated as 10 A- 220 V. How many 60 watt lamp can be connected in the house maintaining proper safety ?
- 56.
The dip circle is placed in such a way that the pick remains vertical. The dip circle is moved 30° vertically and the apparent angle of the dip becomes 45°. Find the actual value of the dip.
- 57.
A transformer has primary to secondary turn ratio 20:1. A 20 ohm load is connected across the Secondary. If the applied voltage across the primary is 220 V, then the current through the Primary is -
- 58.
The angle of minimum deviation of a prism is 30°. If the reflective angle of the prism of 60°, what is refractive index ?
- 59.
A slit is illuminated by a light of wavelength of 650 nm. The first minimum is Obtained at θ = 30°. The width of the slit is -
- 60.
What is the temperature in Celsius scale at which the root mean square velocity of Cl2 is equal to that SO2 gas at NTP?[C-2.1, IUT:10-11]
- 61.
The maximum value of the resultant of two vectors is 7 units and minimum value of those is 1 unit. When two vectors are acting on a point at right angle, the resultant will be-
- 62.
A truck of mass 1000 kg moving at 20ms -1 hits a stationary truck of mass 1500 kg with a combined velocity of -
- 63.
If the length of the minute arm of a wrist watch is 2 cm, what will be linear speed at the mid-point of the arm?
- 64.
The radius of curvature of a rail-line is 450 m and the distance between two rails is 1 m. How much should be the height of outside rail compared to inner rail for necessary raking of a running a train at the speed of 7.5 km/hr.
- 65.
There are some clouds in the sky 1.5 km from the earth surface. The cloud is converted to rain and deposited as water on the surface on earth of area 1×106 m2 with a depth of 1 cm. Calculate the amount of work required to convert the rain from the cloud.
- 66.
A loud speaker used in an open field produces 250 W of power. Find the reduction in sound in dB at the points of 20 m and 30 m straight apart from the loud speaker.
- 67.
A coil of 300 turns has self-inductance of 10 mH. If the current flow in the coil is 3 amperes , what will be the magnetic flux?
- 68.
An object is placed at a distance of 3f in front of a concave mirror of focal length f.what is the size of the mage with respect to size of the object ?
- 69.
A boy cannot see any object at distance beyond 60 cm due his eye defect. What is the power of the lens required to see distant objects beyond that distance ?
- 70.
The component of the vector B⃗=5i^−3j^+2k^ \vec{B} = 5 \hat{i} - 3 \hat{j} + 2 \hat{k} along the vector A⃗=2i^+j^−2k^ \vec{A} = 2 \hat{i} + \hat{j} - 2 \hat{k} will be -
- 71.
Which of the following is not electromagnet wave ?
- 72.
Which of the following d-block elements contain one 4s electron?
- 73.
The most active metal is -
- 74.
If 0.3 mol Zn is added to HCl containing 0.52 mol HCl, how many moles of H2 are produced?
- 75.
Which property is generally considered as the characteristic of organic compound?
- 76.
At 17° temperature and fixed volume, heat of reaction of the following reaction: C(s) + 12O2(g) \frac{1}{2} O_{2} \left ( g \right ) = CO(g) is found as -122.55 KJ. What is the heat of reaction at fixed pressure?
- 77.
Which of the following three metals from stainless steel?
- 78.
1 mole of each C2H5OH and CH3CO2H are allowed to react in 1 litre of solvent (dioxane), equilibrium is established when one-third of a mole of each of the reactants remains.What is the equilibrium constant K of the reaction at this state?
- 79.
If the hydrogen ion concentration of a fruit juice is 3.3×10-2 M ,What is the pH?
- 80.
What is the emf of the following half cell of 47°C?[E for Fe=0.036V ]: Fel FeCl3 (0.25 M)
- 81.
The rate of reaction A+ B→ product is K [A] [B]. What is the unit of the rate constant?
- 82.
From which of the following species, removal of an electron requires maximum energy?
- 83.
A person inhales 200 mg of air once. If the air contains 20% (weight) of oxygen then how many oxygen atoms takes in?
- 84.
Glauber salt is-
- 85.
Which region of atmosphere does contain Ozone layer?
- 86.
Which of the following metal makes an alloy called German silver?
- 87.
Which of the following of the functional group of ketone?
- 88.
Which of the following mixture is petrol?