FLP-07

Mechanical waves are also known as

The ratio of the separation between two consecutive nodes to the separation between two consecutive antinodes is

If the tension in the stretched string is doubled and mass per unit length is halved, then its fundamental frequency will 

The sonometer wire is vibrating in its first overtone. There are

In case of a moving source of sound which is moving away from an observer

Distance and displacement traveled by a vibrating body in a time equal to  where T is the period of the vibration

When K.E of a particle executing S.H.M is maximum, its

The chasing car ‘B’ traveling at 20 m/s sounds a horn which the driver of leading car A travelling at 16 m/s estimates has frequency 340 Hz. The frequency which B’s own drive hears (v = 340 m/s)

A standing wave pattern is formed in the stretched string when the length of the string is 

The string is attached to one end of vibrator having frequency 800 Hz. What will be the speed of the waves produced in the string as shown in figure.

The distance covered by a body in one complete vibration is 20 cm. What is the amplitude of body?

The product of frequency and time period is

Phenomenon of Doppler’s effect is applicable to 

Which one of the following is the correct?

P.E of mass spring system is stored in

A train is moving towards an observer at 72 km/h sounding a whistle of frequency f. It then crosses the observer with the same speed and keeps on whistling. The frequency of the whistle heard by the observer?

With what speed an observer should move towards a stationary source such that apparent frequency is double the actual frequency (v is speed of sound waves)

The ratio of W_isothermal  to W _adiobatic  during same expansion is

A sample of gas expends from volume V1 to V2, the amount of work done by the gas is greater when the expansion is

Slope of P-V graph for a process which is carried out at constant pressure is (Take V along x-axis and P along y-axis)

A gas in an insulated cylinder is compressed rapidly and its internal energy increases by 25 J. Work done during this process is

All of the following about adiabatic compression are incorrect except

A thermodynamics system undergoes a process in which its internal energy decreases by 100 J and at the same time 120 J work is done on the system. Heat transfer is

In the adiabatic process there is no 

If friction is negligible, when a gas is compressed rapidly 

In an isobaric process _____ remains same 

The heat energy absorbed by a system in going through a cyclic process shown in figure is

The work done on the system is taken as 

The equation Q = U in thermodynamic represents an 

The slow rate of a particular chemical reaction might be attributed to 

Four reactions of the type shown are studied at the same temperature.
X(g) + Y(g) → Z(g) 
 Which is the correct reaction pathway diagram for the reaction that would proceed most rapidly forming stable product 

The purpose of striking a match against the side of a box to light the match is

The standard reduction potential values of the three metallic cations X, Y, Z are 0.52,  –3.03, and –1.18 V respectively. The order of reducing power of the corresponding metals is

In the combustion of 2.0 g of methane, 104.5 kJ heat is liberated. The heat of combustion of methane would be 

Which of the following shows abnormal 1st electron affinity value 

Calculate the lattice energy of NaCl, when
 

The cathodic reaction in electrolysis of dil. H₂SO₄ with Pt electrode is 

The diagram shows the electrolysis of molten KCl. 
 What occurs when the switch is closed 

The value of x in above reaction is 

A standard hydrogen electrode has zero electrode potential because

Bomb calorimeter works at constant 

The species which by definition has ZERO standard molar enthalpy of formation at 298 K is 

The value of the equilibrium constant, Kp, varies with the change of

The molar solubility of PbBr₂ is 2.0 x 10-3 M at a certain temperature. Calculate Ksp for PbBr₂

During neutralization of NaOH with HCl, the action responsible for the energy evolved is  

Which of following have trigonal pyramidal molecular geometry

The standard molar enthalpy of combustion for ethanol, (C₂H₅OH) is -1368 kJ C₂H₅OH(g) + 3O₂(g) → 2CO₂(g) + 3H₂O(l) 
What is the standard enthalpy change for the following process?
4CO₂(g) + 6H₂O(l) →2C₂H₅OH(g) + 6O₂(g)

If the concentration is expressed in mole per dm3 the unit of the rate constant for a first order reaction is 

A buffer solution contains 0.22 M sodium acetate (CH₃COONa) and 2.2 M acetic acid (CH₃COOH), pKa = 4.80. What is the pH of this buffer solution

The standard potentials at 25oC for the half reactions are given against them belowZinc rod is dipped to MgCl₂ solution 

The following reaction represents the process used to produce iron from iron (III) oxide Fe₂O₃ + 3CO 2Fe + 3CO₂. What is the reducing agent in this process?

In the following, the element with the highest ionization energy is 

1 cal = 

The relation between enthalpy (H), pressure (P), volume (V) and internal energy (E) is given by 

The reaction  is an example of 

Positive value of cell potential indicates 

For the reaction the ratio Kp /Kc is equal to  

The unit of velocity constant for 2nd order reaction is 

If a reaction with t1/2 = 69.3 s has a rate constant value of 10^-2 per second, the order of the reaction is 

Standard enthalpy of Al₂O₃ cannot be measured directly because

What is the direction of a reversible reaction when one of the products of reaction is removed from the reaction mixture 

The rate constant of a reaction depends upon       

120g of X compound has half-life 30 minutes. The remaining amount of X after 150 minutes is

If an endothermic reaction is allowed to take place very rapidly in the air. The temperature of the surrounding air

Which molecule is planar

In H–F bond electronegativity difference is 1.9. What is the type of this bond 

Which of the following is an exothermic process

Based on the following reactions, the heat of formation of CO will beC(graphite) + O₂  CO₂(g) ,  H = –393 kJ/mole       and 
CO(g)+1/2O₂(g) CO₂(g),     H = –283 kJ/mole   

In hydronium ion (H₃O⁺), the percentage co-ordinate covalent character of every bond is 

Which one has the least bond angle 

The electronegativity of H, O and X are 2.1, 3.5 and 0.7 respectively. The correct nature of compound X–O–H is  

Dilatometric method is used for rate determination when

The specific rate constant k for radioactive beryllium–11 is 0.346s–1. What is the half life of sample of beryllium–11 

One of the application of Le-Chatelier’s principle is 

Select the incorrect about function of catalyst in a reversible reaction

The type of reaction which 
(i) Almost goes to completion   
        (ii) No equilibrium state exists 

The metallic conductors in contact with the solution are called 

In galvanic cell a salt bridge is used in order to 

State function is a macroscopic property that depends upon initial and final states but independent of path. Among the following, which is not state function 

In standard enthalpy of atomization, heat of surrounding 

Which is the most likely shape of a molecule of hydrazine, N2H₄

For which of the following standard heat of formation is not zero 

The oxidation state of halogen is positive in all of the following compounds except 

The process of conversion of complex food substances to simple absorbable forms is called:

Select the one which is not in the category of main food nutrient:

Which of the following is a function of food?

In man blastopore develops __________ first during development.

All are the true for human digestive system except:

Select the one which satisfy the pharynx:

________ is a cartilaginous flap which prevents the entry of food in the wind pipe.

Which structure is responsible for the drainage of stomach?

Total number of sphincters in alimentary canal:

Bolus converts into chyme in stomach. What are the pH changes justify this conversion?

Which of the following is not part of large intestine?

Choose the mismatched pair:

Choose the true one about appendix:

Choose the organ of digestive system which have Oblique muscles:

Muscle of stomach arise from which germinal layer:

Depression in between villi is known as:

In the alimentary canal which is the sequence from outer to inner:

Goblet cells are example of:

Which of the following secretion is responsible for the mechanical digestion in human digestive system?

In human digestive system maximum digestive activity occur in the first part of small intestine. Name the sphincter which drains maximum exocrine secretion in this part:

Select the organism which is true autotroph but also show predation to compensate the nitrogen deficiency:

What are changes in pressure and volume in lungs during expiration?

Most of the oxygen in our blood is transported as:

____  protein has maximum affinity for Carbon mono-oxide and has least affinity for oxygen:

Syrinx is the sound box in birds and located below the trachea, in humans _____ is homologous to syrinx and located on ________ to trachea:

Which of the following is not true?

Exchange of gases between body and atmosphere is known as:

Gaseous exchange through lungs is called:

Right lung is larger than left lung and has ___ lobes:

If a baby boy accidentally get the gram in his nose and carried to the lungs, in which lung are the maximum chances to find that gram:

Respiratory centre is medulla oblongata, inspiratory centre is _____ of medulla:

Expired air contains carbon dioxide _____ times of inhaled air:

Smallest unit of lungs is:

Which of the following factor affects the rate of diffusion of gases?            

Diffusion membrane of lungs is made up of:

Air exit the body is enriched with:

Choose the false one:

The enzyme essential for the transport of CO₂ as bicarbonate in blood is:

Voluntary respiratory centre is located on:

Lungs are limited by _____ from below:

Gaseous exchange in plants can be done via:

The apoplastic pathway stops at:

The aphids feeds on the content of:

Force of attraction between water molecules is:

In plants maximum absorption takes place at:

Minerals dissolved in water are distributed throughout plant body by:

A column of water with in xylem vessels of tall trees does not break under its weight because of:

The softest connective tissue is:

Lymph:

Which of the following is the false statement about human transport system:

All are the components of blood circulatory system except:

Apex of heart:

Papillary muscles are associated with:

Choose the pair of inlet valves:

Centre of Cardiac conductive system is:

The inlet valve which receive and drains oxygenated blood:

Chordae tendineae is found in:

Select the one which is not true for human heart:

Duration of cardiac cycle is less than 0.8 sec. it justifies the statement:

Maximum blood pressure observed in ______:

Diapedesis shown by the _____ vessels:

The organ which has capillary for each cell:

How many iliac arteries are found in a man who has surgically removed one leg?

Select the mismatched pair:

Mean value of normal systolic and diastolic pressures:

Which of the following is not part of lymphatic system?

Which of the following is responsible for the movement of lymph?

One cardiac contraction pumps 20ml of blood, how many cardiac contractions are required for kidneys to receive 20ml of blood:

Find the error. I do not know that (A) what you did all this for, (B) and I am not going(C) to ask you to give me any justification. (D)