1
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The incorrect relation for a diamagnetic material (all the symbols carry their usual meaning and $$\varepsilon$$ is a small positive number) is

A
$$\mu<\mu_0$$
B
$$0 \leq \mu_r<1$$
C
$$-1 \leq \chi<0$$
D
$$1<\mu_r<1+\varepsilon$$
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

An ideal fluid is flowing in a non-uniform cross-sectional tube $$X Y$$ (as shown in the figure) from end $$X$$ to end $$Y$$. If $$K_1$$ and $$K_2$$ are the kinetic energy per unit volume of the fluid at $$X$$ and $$Y$$ respectively, then the correct option is :

NEET 2024 (Re-Examination) Physics - Properties of Matter Question 1 English

A
$$K_1=K_2$$
B
$$2 K_1=K_2$$
C
$$K_1>K_2$$
D
$$K_1 < K_2$$
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The escape velocity for earth is $$v$$. A planet having 9 times mass that of earth and radius, 16 times that of earth, has the escape velocity of:

A
$$\frac{v}{3}$$
B
$$\frac{2 v}{3}$$
C
$$\frac{3 v}{4}$$
D
$$\frac{9 v}{4}$$
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

An electron and an alpha particle are accelerated by the same potential difference. Let $$\lambda_e$$ and $$\lambda_\alpha$$ denote the de-Broglie wavelengths of the electron and the alpha particle, respectively, then:

A
$$\lambda_e>\lambda_\alpha$$
B
$$\lambda_e=4 \lambda_\alpha$$
C
$$\lambda_e=\lambda_\alpha$$
D
$$\lambda_e<\lambda_\alpha$$
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