TGT PHYSICS PAST PAPER 01-06-2025
TGT 5 years Past Papers Click Here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 21/25
- 25/21
- 3/5
- 5/3
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Explanation
Let’s assume two cases:
-
If f=3 (monatomic gas), then:
γ=3+2/3=5/3
-
If (diatomic gas), then:
γ=5+2/5=7/5
Since the question asks for γ when degrees of freedom are 3 and 5, and γ = Cp/Cv, then:
- Schrodinger theory
- Heisenberg uncertain principle
- Photoelectric effect
- None of these
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Explanation
The equation used for evaluating time in quantum fields is the Schrodinger equation.
- FCC
- BCC
- simple
- Cube
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Explanation
The crystal structures with a coordination number of 12 are Face-Centered Cubic (FCC) and Hexagonal Close-Packed (HCP).
In these structures, each atom is surrounded by 12 other atoms.
- 5 × 10⁻⁵ T
- 0.5 × 10⁻⁵ T
- 50 × 10⁻⁵ T
- 1 × 10⁻⁵ T
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Explanation
Formula:
B=μ0I/2πr
Where:
-
μ0=4π×10^−7Tcdotpm/A
-
I=5A (current)
-
r=2cm=0.02m
Substituting Values:
B=4π×10^−7Tcdotpm/A×5A/2×3.14×0.02m
Let’s calculate step by step:
Numerator:
4π×10^−7×5=20π×10^−7
Denominator:
2×3.14×0.02=0.1256
Now,
B=20π×10^−7/ 0.1256
≈62.8×10^−7/ 0.1256 ≈5×10^−5T
B=5×10^−5Tesla
- Internal energy
- Heat
- Temperature
- Entropy
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Explanation
The Zeroth Law states that if two systems are each in thermal equilibrium with a third system
They are in thermal equilibrium with each other.
This defines the concept of temperature.
- Reflecting force
- Deflecting force
- Gravitational force
- Restoring force
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Explanation
Magnetic force is a force that acts on moving charged particles, causing them to change their direction of motion, essentially deflecting them.
- (vi² * sin²θ) / 2g
- (vi² * sin²θ) / g
- (vi² * cos²θ) / 2g
- (sin²θ) / 2g
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Explanation
Maximum height is reached when vertical velocity becomes zero.
Using the kinematic equation:
v² = u² - 2gh, with final v = 0,
h = (vi² * sin²θ) / 2g.
- 20
- 10
- 15
- None of these
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Explanation
Focal length (in meters) = 1 / Power (in diopters)
f = 1 / 5
= 0.2 m
=20 cm
- 1.0 s
- 1.5 s
- 2.0 s
- 3.0 s
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Explanation
T = 2π√(L/g)
= 2π√(1/9.8)
≈ 2.006 s
- 6.022 × 10²³
- 1.6 × 10⁻¹⁹
- 3 × 10⁸
- 6.25 × 10¹⁸
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Explanation
1 electron has a charge of 1.6 × 10⁻¹⁹ C
So, 1 C = 1 / (1.6 × 10⁻¹⁹) = 6.25 × 10¹⁸ electron