Q. What type of damping occurs when the damping force is proportional to the velocity of the oscillator?
A.
Critical damping
B.
Underdamping
C.
Overdamping
D.
Linear damping
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Solution
Linear damping occurs when the damping force is directly proportional to the velocity of the oscillator.
Correct Answer: D — Linear damping
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Q. What type of damping occurs when the damping ratio is greater than 1?
A.
Underdamped
B.
Critically damped
C.
Overdamped
D.
Free oscillation
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Solution
When the damping ratio is greater than 1, the system is overdamped and returns to equilibrium without oscillating.
Correct Answer: C — Overdamped
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Q. What type of decay involves the emission of a helium nucleus?
A.
Alpha decay
B.
Beta decay
C.
Gamma decay
D.
Neutron decay
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Solution
Alpha decay involves the emission of an alpha particle, which is a helium nucleus.
Correct Answer: A — Alpha decay
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Q. What type of deviation from Raoult's Law is observed in solutions with strong solute-solvent interactions?
A.
Positive deviation
B.
Negative deviation
C.
No deviation
D.
Complete miscibility
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Solution
Negative deviation from Raoult's Law occurs when strong solute-solvent interactions lower the vapor pressure more than expected.
Correct Answer: B — Negative deviation
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Q. What type of diffraction occurs when light passes through a circular aperture?
A.
Single-slit diffraction
B.
Double-slit diffraction
C.
Fresnel diffraction
D.
Fraunhofer diffraction
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Solution
When light passes through a circular aperture, it exhibits Fresnel diffraction, characterized by a pattern of concentric rings.
Correct Answer: C — Fresnel diffraction
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Q. What type of diffraction pattern is produced by a circular aperture?
A.
Single slit pattern
B.
Double slit pattern
C.
Airy pattern
D.
Uniform pattern
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Solution
A circular aperture produces an Airy pattern, characterized by a central bright spot surrounded by concentric dark and bright rings.
Correct Answer: C — Airy pattern
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Q. What type of energy is primarily converted to kinetic energy when a rolling object descends a slope?
A.
Potential energy
B.
Thermal energy
C.
Elastic energy
D.
Chemical energy
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Solution
As the object descends, its gravitational potential energy is converted into kinetic energy.
Correct Answer: A — Potential energy
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Q. What type of fluid exhibits a constant viscosity regardless of the shear rate?
A.
Newtonian fluid
B.
Non-Newtonian fluid
C.
Ideal fluid
D.
Real fluid
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Solution
Newtonian fluids have a constant viscosity that does not change with the shear rate.
Correct Answer: A — Newtonian fluid
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Q. What type of fluid has a constant viscosity regardless of the shear rate?
A.
Newtonian fluid
B.
Non-Newtonian fluid
C.
Ideal fluid
D.
Real fluid
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Solution
A Newtonian fluid has a constant viscosity that does not change with the shear rate.
Correct Answer: A — Newtonian fluid
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Q. What type of hybridization is present in alkynes?
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Solution
Alkynes have sp hybridization due to the presence of a triple bond.
Correct Answer: A — sp
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Q. What type of hybridization is present in ethylene (C2H4)?
A.
sp
B.
sp2
C.
sp3
D.
dsp3
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Solution
Ethylene has sp2 hybridization due to the presence of a double bond between the carbon atoms.
Correct Answer: B — sp2
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Q. What type of hybridization is present in the carbon atom of ethylene (C2H4)?
A.
sp
B.
sp2
C.
sp3
D.
dsp3
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Solution
The carbon atoms in ethylene undergo sp2 hybridization.
Correct Answer: B — sp2
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Q. What type of hybridization is present in the carbon atoms of alkanes?
A.
sp
B.
sp2
C.
sp3
D.
sp3d
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Solution
The carbon atoms in alkanes are sp3 hybridized.
Correct Answer: C — sp3
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Q. What type of hybridization is present in the carbon atoms of alkenes?
A.
sp
B.
sp2
C.
sp3
D.
sp3d
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Solution
The carbon atoms in alkenes are sp2 hybridized due to the presence of a double bond.
Correct Answer: B — sp2
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Q. What type of hybridization is present in the molecule BF3?
A.
sp
B.
sp2
C.
sp3
D.
dsp3
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Solution
BF3 has sp2 hybridization as it has three bonding pairs and no lone pairs.
Correct Answer: B — sp2
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Q. What type of hybridization occurs in ethylene (C2H4)?
A.
sp
B.
sp2
C.
sp3
D.
sp3d
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Solution
Ethylene has sp2 hybridization as each carbon atom forms three sigma bonds and one pi bond.
Correct Answer: B — sp2
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Q. What type of hybridization occurs in methane (CH4)?
A.
sp
B.
sp2
C.
sp3
D.
sp3d
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Solution
Methane has sp3 hybridization as it has four equivalent bonds formed by the mixing of one s and three p orbitals.
Correct Answer: C — sp3
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Q. What type of hybridization occurs in the carbon atom of ethylene (C2H4)?
A.
sp
B.
sp2
C.
sp3
D.
sp3d
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Solution
The carbon atoms in ethylene undergo sp2 hybridization, resulting in a planar structure.
Correct Answer: B — sp2
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Q. What type of hybridization occurs in the carbon atoms of alkynes?
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Solution
In alkynes, the carbon atoms are sp hybridized.
Correct Answer: A — sp
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Q. What type of hybridization occurs in the central atom of SF6?
A.
sp
B.
sp2
C.
sp3
D.
sp3d2
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Solution
The central sulfur atom in SF6 undergoes sp3d2 hybridization.
Correct Answer: D — sp3d2
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Q. What type of hybridization occurs in the complex ion [Fe(CN)6]3-?
A.
sp
B.
sp2
C.
sp3
D.
d2sp3
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Solution
[Fe(CN)6]3- exhibits d2sp3 hybridization due to the octahedral arrangement of ligands.
Correct Answer: D — d2sp3
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Q. What type of hybridization occurs in the complex ion [Ni(CN)4]2-?
A.
sp
B.
sp2
C.
sp3
D.
dsp2
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Solution
In [Ni(CN)4]2-, nickel has a coordination number of 4 and uses dsp2 hybridization.
Correct Answer: D — dsp2
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Q. What type of hybridization occurs in the complex [Ni(CO)4]?
A.
sp
B.
sp2
C.
sp3
D.
d2sp3
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Solution
[Ni(CO)4] has a tetrahedral geometry, which corresponds to sp3 hybridization.
Correct Answer: C — sp3
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Q. What type of hybridization occurs in [Ni(CN)4]2-?
A.
sp
B.
sp2
C.
sp3
D.
dsp2
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Solution
[Ni(CN)4]2- has a square planar geometry, which corresponds to dsp2 hybridization.
Correct Answer: D — dsp2
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Q. What type of image is formed by a concave lens when the object is placed at infinity?
A.
Real and inverted
B.
Virtual and upright
C.
Real and upright
D.
Virtual and inverted
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Solution
A concave lens always forms a virtual and upright image regardless of the object's position.
Correct Answer: B — Virtual and upright
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Q. What type of image is formed by a concave mirror when the object is placed between the focal point and the mirror?
A.
Real and inverted
B.
Virtual and upright
C.
Real and upright
D.
Virtual and inverted
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Solution
When the object is placed between the focal point and the mirror, the image formed is virtual and upright.
Correct Answer: B — Virtual and upright
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Q. What type of image is formed by a convex lens when the object is placed at a distance greater than twice the focal length?
A.
Real and inverted
B.
Virtual and upright
C.
Real and upright
D.
Virtual and inverted
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Solution
When the object is placed beyond twice the focal length, the image is real and inverted.
Correct Answer: A — Real and inverted
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Q. What type of image is formed by a convex lens when the object is placed beyond the focal point?
A.
Virtual and upright
B.
Real and inverted
C.
Real and upright
D.
Virtual and inverted
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Solution
A convex lens forms a real and inverted image when the object is beyond the focal point.
Correct Answer: B — Real and inverted
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Q. What type of image is formed by a convex mirror?
A.
Real and inverted
B.
Real and upright
C.
Virtual and upright
D.
Virtual and inverted
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Solution
A convex mirror always forms a virtual and upright image regardless of the object's position.
Correct Answer: C — Virtual and upright
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Q. What type of interaction is crucial for the tertiary structure of proteins?
A.
Hydrophobic interactions
B.
Covalent bonds
C.
Ionic interactions
D.
All of the above
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Solution
The tertiary structure of proteins is stabilized by a combination of hydrophobic interactions, ionic interactions, hydrogen bonds, and sometimes covalent bonds.
Correct Answer: D — All of the above
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